fix(diff): migra js OOM error

[avallete]

What kind of change does this PR introduce?

This fixes a regression we had since 2.52.5 when migrating to pgkit/edge-runtime diff for larges database schemas. It caused OOM error with migra:

error diffing schema: error running container: exit 133:                                                                                                                                                   
                                                                                                                                                                                                           
<--- Last few GCs --->                                                                                                                                                                                     
                                                                                                                                                                                                           
[8:0xffff7cde0000]     9024 ms: Mark-Compact 1400.7 (1404.7) -> 1399.4 (1405.4) MB, pooled: 0 MB, 458.71 / 0.00 ms  (average mu = 0.057, current mu = 0.004) allocation failure; scavenge might not succeed
                                                                                                                                                                                                           
                                                                                                                                                                                                           
<--- JS stacktrace --->                                                                                                                                                                                    
                                                                                                                                                                                                           
                                                                                                                                                                                                           
                                                                                                                                                                                                           
#                                                                                                                                                                                                          
# Fatal JavaScript out of memory: Ineffective mark-compacts near heap limit                                                                                                                                
#                                                                                                                                                                                                          
==== C stack trace ===============================                                                                                                                                                         
                                                                                                                                                                                                           
    edge-runtime(+0x3ef4710) [0xaaaad8bc4710]                                                                                                                                                              
    edge-runtime(+0x35a235c) [0xaaaad827235c]                                                                                                                                                              
    edge-runtime(+0x359f6c4) [0xaaaad826f6c4]                                                                                                                                                              
    edge-runtime(+0x35d306c) [0xaaaad82a306c]                                                                                                                                                              
    edge-runtime(+0x36e3e90) [0xaaaad83b3e90]                                                                                                                                                              
    edge-runtime(+0x36f52b0) [0xaaaad83c52b0]                                                                                                                                                              
    edge-runtime(+0x36f4ae0) [0xaaaad83c4ae0]                                                                                                                                                              
    edge-runtime(+0x3b89ea8) [0xaaaad8859ea8]                                                                                                                                                              
Trace/breakpoint trap

To mitigate this issue, I added a fallback to use the Bash/python approach if this OOM error occurs with the JS wrapper.

[coveralls]

Coverage Report for CI Build 24089895651

Coverage decreased (-0.03%) to 63.815%

Details

• Coverage decreased (-0.03%) from the base build.
• Patch coverage: 5 uncovered changes across 1 file (7 of 12 lines covered, 58.33%).
• 7 coverage regressions across 2 files.

Uncovered Changes

File	Changed	Covered	%
internal/db/diff/migra.go	11	6	54.55%

Coverage Regressions

7 previously-covered lines in 2 files lost coverage.

File	Lines Losing Coverage	Coverage
internal/utils/git.go	5	57.14%
internal/storage/rm/rm.go	2	80.61%

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Coverage Stats

Relevant Lines:	15313
Covered Lines:	9772
Line Coverage:	63.82%
Coverage Strength:	6.89 hits per line

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💛 - Coveralls