Refine zuul job affected files

Do not run jobs when the only files changed are docs

Signed-off-by: Artem Goncharov <[email protected]>

.zuul.d/config.yaml

@@ -5,14 +5,21 @@
     merge-mode: "squash-merge"
     check:
       jobs:
-        - scs-baseline-security-scan-test
-        - scs-full-security-scan-test
-        - scs-greenbone-security-scan-test
+        - scs-baseline-security-scan-test:
+            irrelevant-files: docs/.*
+        - scs-full-security-scan-test:
+            irrelevant-files: docs/.*
+        - scs-greenbone-security-scan-test:
+            irrelevant-files: docs/.*
     gate:
       jobs:
-        - scs-baseline-security-scan-test
-        - scs-full-security-scan-test
-        - scs-greenbone-security-scan-test
+        - noop
+        - scs-baseline-security-scan-test:
+            irrelevant-files: docs/.*
+        - scs-full-security-scan-test:
+            irrelevant-files: docs/.*
+        - scs-greenbone-security-scan-test:
+            irrelevant-files: docs/.*
     periodic-daily:
       jobs:
         - scs-baseline-security-scan