Add yaml document start marker (---) in workflows

.github/workflows/changelog-fragment.yml

@@ -1,3 +1,4 @@
+---
 name: Changelog Fragment present
 
 on:

.github/workflows/dependabot-auto-merge.yml

@@ -1,3 +1,4 @@
+---
 name: Dependabot auto-merge
 on: pull_request_target
 

.github/workflows/prepare-release.yml

@@ -1,3 +1,4 @@
+---
 name: Prepare Release
 
 on:

.github/workflows/publish.yml

@@ -1,3 +1,4 @@
+---
 name: Publish to PyPI / GitHub
 
 on:

.github/workflows/status_embed.yml

@@ -1,3 +1,4 @@
+---
 name: Status Embed
 
 on:
@@ -14,7 +15,7 @@ concurrency:
 
 jobs:
   status_embed:
-    name:  Send Status Embed to Discord
+    name: Send Status Embed to Discord
     runs-on: ubuntu-latest
     steps:
       # A workflow_run event does not contain all the information
@@ -45,7 +46,7 @@ jobs:
         uses: SebastiaanZ/[email protected]
         with:
           # Our GitHub Actions webhook
-          webhook_id: '1051784242318815242'
+          webhook_id: "1051784242318815242"
           webhook_token: ${{ secrets.webhook_token }}
 
           # We need to provide the information of the workflow that
@@ -64,5 +65,5 @@ jobs:
 
           # And some additional details
           actor: ${{ github.actor }}
-          repository:  ${{ github.repository }}
+          repository: ${{ github.repository }}
           ref: ${{ github.ref }}

.github/workflows/unit-tests.yml

@@ -1,3 +1,4 @@
+---
 name: Unit-Tests
 
 on: workflow_call

.github/workflows/validation.yml

@@ -1,3 +1,4 @@
+---
 name: Validation
 
 on: workflow_call