refactor: Add more checks to pre-commit

Updated existing pre-commit hooks and added some new hooks:

- Remove trailing whitespace
- Ensure every non-empty file ends with a new line
- Check YAML file validity
- Prevent adding large files
- Ensure any scripts with shebangs are executable

Added a GitHub action to run pre-commit on every commit. Removed any
existing actions which duplicate pre-commit.

Ran pre-commit on the codebase.

.pre-commit-config.yaml

@@ -1,12 +1,20 @@
 fail_fast: false
 repos:
   - repo: https://github.com/pocc/pre-commit-hooks
-    rev: v1.1.1
+    rev: v1.3.5
     hooks:
       - id: clang-format
         args:
           - -i
   - repo: https://github.com/pre-commit/mirrors-prettier
-    rev: v2.2.1
+    rev: v2.7.1
     hooks:
       - id: prettier
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.4.0
+    hooks:
+      - id: trailing-whitespace
+      - id: check-yaml
+      - id: check-added-large-files
+      - id: check-shebang-scripts-are-executable
+        exclude: "\\.mustache$"