Add unshallowing repository to CI preflight checks

Author: danudey

Makefile

@@ -37,6 +37,7 @@ clean:
 	rm -rf ./bin
 
 ci-preflight-checks:
+	$(MAKE) unshallow-ci-repository
 	$(MAKE) check-go-mod
 	$(MAKE) check-dockerfiles
 	$(MAKE) check-language
@@ -45,6 +46,15 @@ ci-preflight-checks:
 	$(MAKE) check-ocp-no-crds
 	$(MAKE) check-dirty
 
+unshallow-ci-repository:
+ifdef CI
+	$(info Running in CI; unshallowing the repository to ensure we have all tags and branches)
+	git config set remote.origin.fetch '+refs/heads/*:refs/remotes/origin/*'
+	git fetch --all --quiet
+else
+	$(info Not running in CI; skipping unshallowing the repository)
+endif
+
 check-go-mod:
 	$(DOCKER_GO_BUILD) ./hack/check-go-mod.sh