ci: update linter workflow

Author: dsanders11

.github/workflows/linter.yml

@@ -2,6 +2,8 @@ name: Lint Codebase
 
 on:
   pull_request:
+    branches:
+      - main
   push:
     branches:
       - main
@@ -20,6 +22,8 @@ jobs:
       - name: Checkout
         id: checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+        with:
+          fetch-depth: 0
 
       - name: Setup Node.js
         id: setup-node