Add publish workflow

This change adds a new workflow that we can use for publishing a new
version of the crate. The workflow has to manually be invoked and will
then perform the publishing from a more or less well-defined CI
environment.

.github/workflows/publish.yml

@@ -0,0 +1,27 @@
+# Copyright (C) 2023 Daniel Mueller <deso@posteo.net>
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+name: Publish
+
+on:
+  workflow_dispatch:
+
+jobs:
+  test:
+    uses: ./.github/workflows/test.yml
+    secrets: inherit
+  publish:
+    needs: [test]
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Install Rust
+      uses: actions-rs/toolchain@v1
+      with:
+        profile: minimal
+        toolchain: stable
+        override: true
+    - name: Publish
+      run: cargo publish --no-verify --token "${CARGO_REGISTRY_TOKEN}"
+      env:
+        CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}

.github/workflows/test.yml

@@ -6,6 +6,7 @@ name: Test
 on:
   push:
   pull_request:
+  workflow_call:
 
 env:
   CARGO_TERM_COLOR: always

CHANGELOG.md

@@ -1,6 +1,7 @@
 Unreleased
 ----------
 - Introduced `static` feature for linking to `libreadline` statically
+- Added GitHub Actions workflow for publishing the crate
 
 
 0.3.1