Add Dockerfile for all SDK e2e tests, fix flaky e2e tests

[juliusgeo]

Description

Adds a built Dockerfile for the go e2e tests.

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Documentation change (pure documentation change)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (non-breaking changes to code which doesn't change any behaviour)
• CI (any automation pipeline changes)
• Chore (changes which are not directly related to any business logic)
• Test changes (add, refactor, improve or change a test)
• This change requires a documentation update

What's Changed

• Add a list of tasks or features here...

[vercel]

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Project	Deployment	Actions	Updated (UTC)
hatchet-docs	Ready	Preview, Comment	May 19, 2026 7:29pm

[github-actions]

Benchmark results

goos: linux
goarch: amd64
pkg: github.com/hatchet-dev/hatchet/pkg/scheduling/v1
cpu: AMD Ryzen 9 7950X3D 16-Core Processor          
              │ /tmp/old.txt │         /tmp/new.txt          │
              │    sec/op    │    sec/op     vs base         │
RateLimiter-8    54.38µ ± 9%   52.95µ ± 16%  ~ (p=0.818 n=6)

              │ /tmp/old.txt │         /tmp/new.txt          │
              │     B/op     │     B/op      vs base         │
RateLimiter-8   137.7Ki ± 0%   137.7Ki ± 0%  ~ (p=0.299 n=6)

              │ /tmp/old.txt │          /tmp/new.txt          │
              │  allocs/op   │  allocs/op   vs base           │
RateLimiter-8    1.022k ± 0%   1.022k ± 0%  ~ (p=1.000 n=6) ¹
¹ all samples are equal

_{Compared against main (153cbc2)}

[mrkaye97]

🥳