Save CI resources by running some jobs only for code changes

On-behalf-of: SAP <[email protected]>
Signed-off-by: Marvin Beckers <[email protected]>

Author: embik

.prow.yaml

@@ -36,6 +36,7 @@ presubmits:
   - name: pull-kcp-operator-build-image
     always_run: true
     decorate: true
+    run_if_changed: "(Dockerfile|Makefile|.prow.yaml|go.mod|go.sum|cmd|internal|sdk|hack)"
     clone_uri: "https://github.com/kcp-dev/kcp-operator"
     labels:
       preset-goproxy: "true"
@@ -58,6 +59,7 @@ presubmits:
   - name: pull-kcp-operator-test
     always_run: true
     decorate: true
+    run_if_changed: "(Dockerfile|Makefile|.prow.yaml|go.mod|go.sum|cmd|internal|sdk|hack|test)"
     clone_uri: "https://github.com/kcp-dev/kcp-operator"
     labels:
       preset-goproxy: "true"
@@ -78,6 +80,7 @@ presubmits:
   - name: pull-kcp-operator-test-e2e
     always_run: true
     decorate: true
+    run_if_changed: "(Dockerfile|Makefile|.prow.yaml|go.mod|go.sum|cmd|internal|sdk|hack|test)"
     clone_uri: "https://github.com/kcp-dev/kcp-operator"
     labels:
       preset-goproxy: "true"
@@ -97,6 +100,7 @@ presubmits:
   - name: pull-kcp-operator-test-e2e-canary
     always_run: true
     decorate: true
+    run_if_changed: "(Dockerfile|Makefile|.prow.yaml|go.mod|go.sum|cmd|internal|sdk|hack|test)"
     optional: true
     clone_uri: "https://github.com/kcp-dev/kcp-operator"
     labels: