Bump buildpacks/sbt/test-apps/heroku-scala-getting-started from `928d3c9` to `b16773f` #958

Job	Run time
Rust Code Linting	27s
Unit Tests	24s
Integration Tests (buildpacks/gradle, builder:24, amd64)	3m 36s
Integration Tests (buildpacks/jvm, builder:24, amd64)	2m 48s
Integration Tests (buildpacks/maven, builder:24, amd64)	4m 16s
Integration Tests (buildpacks/sbt, builder:24, amd64)	5m 40s
Integration Tests (buildpacks/gradle, builder:24, arm64)	4m 52s
Integration Tests (buildpacks/jvm, builder:24, arm64)	4m 37s
Integration Tests (buildpacks/maven, builder:24, arm64)	4m 24s
Integration Tests (buildpacks/sbt, builder:24, arm64)	6m 54s
Integration Tests (buildpacks/gradle, builder:22, amd64)	3m 28s
Integration Tests (buildpacks/jvm, builder:22, amd64)	2m 51s
Integration Tests (buildpacks/jvm-function-invoker, builder:22, amd64)	3m 6s
Integration Tests (buildpacks/maven, builder:22, amd64)	4m 1s
Integration Tests (buildpacks/sbt, builder:22, amd64)	6m 22s
Integration Tests (buildpacks/gradle, builder:20, amd64)	3m 24s
Integration Tests (buildpacks/jvm, builder:20, amd64)	2m 40s
Integration Tests (buildpacks/maven, builder:20, amd64)	3m 33s
Integration Tests (buildpacks/sbt, builder:20, amd64)	5m 28s
	1h 12m 51s

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