(chore): Update PR template

.github/pull_request_template.md

@@ -5,29 +5,11 @@
   Failing to do so will most likely result in closing of this PR without any explanation.
   It is also mandatory to open a relevant issue (either Package Request or Bug Report) for
   discussion with the maintainers, before creating any new PR.
+  Read the contributing guide first to save both your and our time.
 -->
 
 Closes #XXXX
 <!-- or -->
 Relates to #XXXX
 
-<!--
+- [ ] I have read the [Contributing Guide](https://github.com/ScoopInstaller/.github/blob/main/.github/CONTRIBUTING.md).
-  If this is a manifest for a new package, make sure that you follow the general order of
-  fields as shown below:
-  `version`
-  `description`
-  `homepage`
-  `license`
-  `url`
-  `hash`
-  `pre_install`
-  `installer`
-  `post_install`
-  `uninstaller`
-  `bin`
-  `shortcuts`
-  `persist`
-  `checkver`
-  `autoupdate`
-  `notes`
--->

.github/workflows/excavator.yml

@@ -9,7 +9,7 @@ jobs:
     name: Excavate
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@main
     - name: Excavate
       uses: ScoopInstaller/Scoop-GithubActions@main
       env: