add dependabot

Author: jmckenna

.github/dependabot.yml

@@ -0,0 +1,8 @@
+# https://docs.github.com/en/code-security/dependabot/working-with-dependabot/automating-dependabot-with-github-actions
+
+version: 2
+updates:
+  - package-ecosystem: "github-actions" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"

.github/workflows/check-crlf.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout repository contents
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
 
       - name: Use action to check for CRLF endings
-        uses: erclu/check-crlf@v1.2.0
+        uses: erclu/check-crlf@master