fix: quote all shell commands containing colons in YAML

.woodpecker.yml

@@ -98,7 +98,7 @@ steps:
   notify-failure:
     image: alpine:3.20
     commands:
-      - echo "ECHEC pipeline #${CI_BUILD_NUMBER} sur commit ${CI_COMMIT_SHA:0:8}"
+      - 'echo "ECHEC pipeline #${CI_BUILD_NUMBER} sur commit ${CI_COMMIT_SHA}"'
-      - echo "Branche: ${CI_COMMIT_BRANCH}"
+      - 'echo "Branche: ${CI_COMMIT_BRANCH}"'
     when:
       status: failure