Pin GitHub Actions to SHA + Dependabot (#62)

* feat(repo): Add dependabot

* fix(ci): clean up

* fix(gh-actions): pin to sha

* fix(lint): fixing yaml lint

* feat(repo): Add dependabot

* fix(vagrant): up retry count to 60 because gh actions are sloooooow

.github/workflows/lint.yml

@@ -13,10 +13,10 @@ jobs:
 
     steps:
       - name: Check out the codebase
-        uses: actions/checkout@v3
+        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b # 3.0.2
 
       - name: Set up Python 3.x
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@b55428b1882923874294fa556849718a1d7f2ca5 #4.0.2
         with:
           python-version: '3.x'