Enable PAM builds

Gitea's official builds have this disabled. I'm not sure why.
But I would like to use it at least on some neurogitea systems,
so turn it on.
See https://docs.gitea.io/en-us/authentication/#pam-pluggable-authentication-module

.github/workflows/release.yml

@@ -19,7 +19,7 @@ jobs:
 
       - name: Install toolchain
         run: |
-          sudo apt-get update && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y make git xz-utils
+          sudo apt-get update && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y make git xz-utils libpam0g-dev
       # per README.md, building needs Go 1.19 and Node LTS
       - uses: actions/setup-go@v3
         with:
@@ -35,7 +35,7 @@ jobs:
         #
         # Instead, just do native Linux compilation then pretend we did 'make release'.
         run: |
-          TAGS="bindata sqlite sqlite_unlock_notify" make build
+          TAGS="bindata sqlite sqlite_unlock_notify pam" make build
           mkdir -p dist/release
           cp -p gitea dist/release/gitea-$(git describe --tags --always)-linux-amd64