chore: update Go to 1.20.5 (#7877)

.github/workflows/security.yaml

@@ -19,7 +19,7 @@ concurrency:
   cancel-in-progress: ${{ github.event_name == 'pull_request' }}
 
 env:
-  CODER_GO_VERSION: "1.20.4"
+  CODER_GO_VERSION: "1.20.5"
 
 jobs:
   codeql:
@@ -32,10 +32,7 @@ jobs:
         with:
           languages: go, javascript
 
-      - name: Setup Go
-        uses: buildjet/setup-go@v4
-        with:
-          go-version: ${{ env.CODER_GO_VERSION }}
+      - uses: ./.github/actions/setup-go
 
       # Workaround to prevent CodeQL from building the dashboard.
       - name: Remove Makefile
@@ -63,10 +60,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: buildjet/setup-go@v4
-        with:
-          go-version: ${{ env.CODER_GO_VERSION }}
-          cache: true
+      - uses: ./.github/actions/setup-go
 
       - name: Cache Node
         id: cache-node