Bump buildpacks/github-actions from 5.8.3 to 5.8.8 #1041

Job	Run time
Rust Code Linting	38s
Integration Tests (buildpacks/gradle, builder:24, amd64)	3m 49s
Integration Tests (buildpacks/jvm, builder:24, amd64)	3m 52s
Integration Tests (buildpacks/maven, builder:24, amd64)	6m 2s
Unit Tests	1m 6s
Integration Tests (buildpacks/sbt, builder:24, amd64)	5m 44s
Integration Tests (buildpacks/gradle, builder:24, arm64)	4m 25s
Integration Tests (buildpacks/jvm, builder:24, arm64)	4m 39s
Generate test coverage report	1m 17s
Integration Tests (buildpacks/maven, builder:24, arm64)	7m 23s
Integration Tests (buildpacks/sbt, builder:24, arm64)	5m 37s
Integration Tests (buildpacks/gradle, builder:22, amd64)	5m 29s
Integration Tests (buildpacks/jvm, builder:22, amd64)	4m 56s
Integration Tests (buildpacks/jvm-function-invoker, builder:22, amd64)	5m 13s
Integration Tests (buildpacks/maven, builder:22, amd64)	3m 48s
Integration Tests (buildpacks/sbt, builder:22, amd64)	5m 58s
Integration Tests (buildpacks/gradle, builder:20, amd64)	3m 40s
Integration Tests (buildpacks/jvm, builder:20, amd64)	2m 3s
Integration Tests (buildpacks/maven, builder:20, amd64)	5m 7s
Integration Tests (buildpacks/sbt, builder:20, amd64)	7m 2s
	1h 27m 48s

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