Bump actions/checkout from 6 to 7 #5915

Job	Run time
Julia 1 - ubuntu-latest-x86 - General;Benchmarks;FileFormats;Nonlinear	7m 24s
Julia 1 - windows-latest-x64 - General;Benchmarks;FileFormats;Nonlinear	7m 27s
Julia 1.10 - ubuntu-latest-x64 - Bridges/General	12m 32s
Julia nightly - ubuntu-latest-x64 - Bridges/General	20m 0s
Julia nightly - ubuntu-latest-x64 - Bridges/Objective;Bridges/Variable	6m 5s
Julia 1 - windows-latest-x64 - Bridges/Constraint	16m 52s
Julia 1.10 - ubuntu-latest-x64 - General;Benchmarks;FileFormats;Nonlinear	4m 33s
Julia 1 - ubuntu-latest-x86 - Bridges/Constraint	19m 7s
Julia 1 - ubuntu-latest-x86 - Bridges/General	22m 51s
Julia 1.10 - ubuntu-latest-x64 - Utilities	13m 18s
Julia nightly - ubuntu-latest-x64 - Bridges/Constraint	17m 41s
Julia 1 - windows-latest-x64 - Bridges/Objective;Bridges/Variable	5m 57s
Julia nightly - ubuntu-latest-x64 - Test	14m 38s
Julia 1.10 - ubuntu-latest-x64 - Bridges/Objective;Bridges/Variable	2m 59s
Julia 1.10 - ubuntu-latest-x64 - Test	6m 46s
Julia 1 - windows-latest-x64 - Utilities	22m 5s
Julia 1 - ubuntu-latest-x86 - Utilities	25m 34s
Julia nightly - ubuntu-latest-x64 - Utilities	25m 34s
Julia 1.10 - ubuntu-latest-x64 - Bridges/Constraint	8m 8s
Julia 1 - windows-latest-x64 - Test	16m 6s
Julia 1 - ubuntu-latest-x86 - Test	18m 7s
Julia 1 - ubuntu-latest-x86 - Bridges/Objective;Bridges/Variable	7m 14s
Julia 1 - windows-latest-x64 - Bridges/General	17m 59s
Julia nightly - ubuntu-latest-x64 - General;Benchmarks;FileFormats;Nonlinear	7m 40s
	5h 26m 37s

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