adding parallel execution for integration test of golang gradle and maven (#3677)

Co-authored-by: anilkeshav27 <you@example.com>

integration/integration_golang_test.go

@@ -20,6 +20,7 @@ import (
 // In this test the piper command golangBuild performs testing, BOM file creation and building a project with entry point in the cmd/server/server.go
 // The configuration for golangBuild can be found in testdata/TestGolangIntegration/golang-project1/.pipeline/config.yml
 func TestGolangBuild_Project1(t *testing.T) {
+	t.Parallel()
 	ctx := context.Background()
 
 	pwd, err := os.Getwd()
@@ -103,6 +104,7 @@ ls -l >files-list.txt 2>&1
 // In this test, the piper golangBuild command only builds the project with the entry point at the project root.
 // The configuration for golangBuild can be found in testdata/TestGolangIntegration/golang-project2/.pipeline/config.yml
 func TestGolangBuild_Project2(t *testing.T) {
+	t.Parallel()
 	ctx := context.Background()
 
 	pwd, err := os.Getwd()

integration/integration_gradle_test.go

@@ -18,6 +18,7 @@ import (
 )
 
 func TestGradleExecuteBuild_JavaProject_BOMCreation(t *testing.T) {
+	t.Parallel()
 	ctx := context.Background()
 
 	pwd, err := os.Getwd()
@@ -90,6 +91,7 @@ ls -l ./build/reports/ >files-list.txt 2>&1
 }
 
 func TestGradleExecuteBuild_JavaProjectWithBomPlugin(t *testing.T) {
+	t.Parallel()
 	ctx := context.Background()
 
 	pwd, err := os.Getwd()

integration/integration_maven_test.go

@@ -10,6 +10,7 @@ import (
 )
 
 func TestMavenBuildCloudSdkSpringProject(t *testing.T) {
+	t.Parallel()
 	container := givenThisContainer(t, IntegrationTestDockerExecRunnerBundle{
 		Image:   "maven:3-openjdk-8-slim",
 		User:    "1000",
@@ -39,6 +40,7 @@ func TestMavenBuildCloudSdkSpringProject(t *testing.T) {
 }
 
 func TestMavenBuildCloudSdkTomeeProject(t *testing.T) {
+	t.Parallel()
 	container := givenThisContainer(t, IntegrationTestDockerExecRunnerBundle{
 		Image:   "maven:3-openjdk-8-slim",
 		User:    "1000",