delete unnecessary files

.gitignore

source/.gradle/6.5/executionHistory/executionHistory.bin

source/.gradle/6.5/executionHistory/executionHistory.lock

source/.gradle/6.5/fileChanges/last-build.bin

source/.gradle/6.5/fileContent/fileContent.lock

source/.gradle/6.5/fileHashes/fileHashes.bin

source/.gradle/6.5/fileHashes/fileHashes.lock

source/.gradle/6.5/fileHashes/resourceHashesCache.bin

source/.gradle/6.5/gc.properties

source/.gradle/6.5/javaCompile/classAnalysis.bin

source/.gradle/6.5/javaCompile/jarAnalysis.bin

source/.gradle/6.5/javaCompile/javaCompile.lock

source/.gradle/6.5/javaCompile/taskHistory.bin

...le/7.2/dependencies-accessors/dependencies-accessors.lock

source/.gradle/7.2/dependencies-accessors/gc.properties

source/.gradle/7.2/executionHistory/executionHistory.bin

source/.gradle/7.2/executionHistory/executionHistory.lock

source/.gradle/7.2/fileChanges/last-build.bin

source/.gradle/7.2/fileHashes/fileHashes.bin

source/.gradle/7.2/fileHashes/fileHashes.lock