Update makefile to run more tests in parallel

Makefile

@@ -55,7 +55,7 @@ generate-test-certs:
 .PHONY: test-integration-controllers
 test-integration-controllers: generate fmt vet manifests
 	TEST_RESOURCE_PREFIX=$(TEST_RESOURCE_PREFIX) TEST_USE_EXISTING_CLUSTER=false REQUEUE_AFTER=20 \
-	go test -v -tags "$(BUILD_TAGS)" -coverprofile=reports/integration-controllers-coverage-output.txt -coverpkg=./... -covermode count -parallel 4 -timeout 45m \
+	go test -v -tags "$(BUILD_TAGS)" -coverprofile=reports/integration-controllers-coverage-output.txt -coverpkg=./... -covermode count -parallel 8 -timeout 45m \
 		./controllers/... \
 		./pkg/secrets/...
 		# TODO: Note that the above test (secrets/keyvault) is not an integration-controller test... but it's not a unit test either and unfortunately the test-integration-managers target isn't run in CI either?
@@ -64,7 +64,7 @@ test-integration-controllers: generate fmt vet manifests
 .PHONY: test-v1-secret-naming
 test-v1-secret-naming: generate fmt vet manifests
 	TEST_RESOURCE_PREFIX=$(TEST_RESOURCE_PREFIX) TEST_USE_EXISTING_CLUSTER=false REQUEUE_AFTER=20 AZURE_SECRET_NAMING_VERSION=1 \
-	go test -v -run "^.*_SecretNamedCorrectly$$" -tags "$(BUILD_TAGS)" -coverprofile=reports/v1-secret-naming-coverage-output.txt -coverpkg=./... -covermode count -parallel 4 -timeout 10m \
+	go test -v -run "^.*_SecretNamedCorrectly$$" -tags "$(BUILD_TAGS)" -coverprofile=reports/v1-secret-naming-coverage-output.txt -coverpkg=./... -covermode count -parallel 8 -timeout 10m \
 		./controllers/...
 
 # Run Resource Manager tests against the configured cluster