fix broken CI (see https://vielmetti.typepad.com/logbook/2022/10/git-security-fixes-lead-to-fatal-transport-file-not-allowed-error-in-ci-systems-cve-2022-39253.html)

try this

WIP

pkg/integration/components/runner.go

@@ -144,6 +144,7 @@ func createFixture(test *IntegrationTest, paths Paths) error {
 	shell.RunCommand(`git config user.email "CI@example.com"`)
 	shell.RunCommand(`git config user.name "CI"`)
 	shell.RunCommand(`git config commit.gpgSign false`)
+	shell.RunCommand(`git config protocol.file.allow always`)
 
 	test.SetupRepo(shell)