CI-CD Updates (#768)

* Use new version of CI-CD Actions
* Use cSpell spell check, and use ubuntu-20.04 for formatting check
* Format and spell check all files in the portable directory
* Remove the https:// from #errors and #warnings as uncrustify attempts to change it to /*
* Use checkout@v3 instead of checkout@v2 on all jobs
---------

.github/workflows/auto-release.yml

@@ -31,14 +31,14 @@ jobs:
 
       # Currently FreeRTOS/.github/scripts houses the release script. Download it for upcoming usage
       - name: Checkout FreeRTOS Release Tools
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: FreeRTOS/FreeRTOS
           path: tools
 
       # Simpler git auth if we use checkout action and forward the repo to release script
       - name: Checkout FreeRTOS Kernel
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           path: local_kernel
           fetch-depth: 0