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
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cspell.config.yaml

@@ -0,0 +1,31 @@
+---
+$schema: https://raw.githubusercontent.com/streetsidesoftware/cspell/main/cspell.schema.json
+version: '0.2'
+# Allows things like stringLength
+allowCompoundWords: true
+
+# Read files not to spell check from the git ignore
+useGitignore: true
+
+#  Language settings for C
+languageSettings:
+  - caseSensitive: false
+    enabled: true
+    languageId: c
+    locale: "*"
+
+# Add a dictionary, and the path to the word list
+dictionaryDefinitions:
+  - name: freertos-words
+    path: '.github/.cSpellWords.txt'
+    addWords: true
+
+dictionaries:
+  - freertos-words
+
+# Paths and files to ignore
+ignorePaths:
+  - 'dependency'
+  - 'docs'
+  - 'ThirdParty'
+  - 'History.txt'