ci: use add needs so tests start faster

those jobs don't need the fail-on-desync-wiki job to finish, to be able to
function

.gitlab-ci.yml

@@ -51,6 +51,9 @@ mdlint:
   image:
     name: markdownlint/markdownlint
     entrypoint: [""]
+  needs:
+    - job: find-files
+      artifacts: true
   script:
     - |
       echo "working on files: $(cat changed-files.txt)"
@@ -67,6 +70,9 @@ mdlintall:
   image:
     name: markdownlint/markdownlint
     entrypoint: [""]
+  needs:
+    - job: find-files
+      artifacts: true
   script:
     - echo 'this is important to get the return value of mdl, not grep'
     - set -o pipefail
@@ -79,6 +85,9 @@ mdlintall:
 codespell:
   image:
     name: debian:stable
+  needs:
+    - job: find-files
+      artifacts: true
   before_script:
     - apt update
     - apt install -qy codespell
@@ -93,6 +102,9 @@ codespell:
 codespellall:
   image:
     name: debian:stable
+  needs:
+    - job: find-files
+      artifacts: true
   before_script:
     - apt update
     - apt install -qy codespell