fix: fix security workflow not installing protoc properly (#15263)

.github/workflows/security.yaml

@@ -3,7 +3,6 @@ name: "security"
 permissions:
   actions: read
   contents: read
-  security-events: write
 
 on:
   workflow_dispatch:
@@ -23,6 +22,8 @@ concurrency:
 
 jobs:
   codeql:
+    permissions:
+      security-events: write
     runs-on: ${{ github.repository_owner == 'coder' && 'depot-ubuntu-22.04-8' || 'ubuntu-latest' }}
     steps:
       - name: Harden Runner
@@ -61,6 +62,8 @@ jobs:
             "${{ secrets.SLACK_SECURITY_FAILURE_WEBHOOK_URL }}"
 
   trivy:
+    permissions:
+      security-events: write
     runs-on: ${{ github.repository_owner == 'coder' && 'depot-ubuntu-22.04-8' || 'ubuntu-latest' }}
     steps:
       - name: Harden Runner
@@ -95,13 +98,20 @@ jobs:
           # protoc must be in lockstep with our dogfood Dockerfile or the
           # version in the comments will differ. This is also defined in
           # ci.yaml.
-          set -x
+          set -euxo pipefail
           cd dogfood/contents
+          mkdir -p /usr/local/bin
+          mkdir -p /usr/local/include
+
           DOCKER_BUILDKIT=1 docker build . --target proto -t protoc
           protoc_path=/usr/local/bin/protoc
           docker run --rm --entrypoint cat protoc /tmp/bin/protoc > $protoc_path
           chmod +x $protoc_path
           protoc --version
+          # Copy the generated files to the include directory.
+          docker run --rm -v /usr/local/include:/target protoc cp -r /tmp/include/google /target/
+          ls -la /usr/local/include/google/protobuf/
+          stat /usr/local/include/google/protobuf/timestamp.proto
 
       - name: Build Coder linux amd64 Docker image
         id: build