ci: switch to releaser-pleaser (#483)

Switch to
[releaser-pleaser](https://github.com/apricote/releaser-pleaser) for
planning new releases. This adds the following new features:

- We can easily cut pre-releases, these are always useful if we want to
allow some customers to test features before making an official release
or to validate changes made to the release CI workflows.
- We can add our own release notes to each release to better inform
customers about the new features we added or about any deprecations.

Author: apricote

.github/release-please-config.json

@@ -0,0 +1,25 @@
+name: Releaser-pleaser
+
+on:
+  push:
+    branches: [main]
+  pull_request_target:
+    types:
+      - edited
+      - labeled
+      - unlabeled
+
+jobs:
+  releaser-pleaser:
+    # Do not run on forks.
+    if: github.repository == 'hetznercloud/hcloud-python'
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: releaser-pleaser
+        uses: apricote/[email protected]
+        with:
+          token: ${{ secrets.HCLOUD_BOT_TOKEN }}
+          extra-files: |
+            setup.py
+            hcloud/_version.py

.github/release-please-manifest.json

@@ -31,7 +31,7 @@ jobs:
       - name: Upload coverage reports to Codecov
         if: >
           !startsWith(github.head_ref, 'renovate/') &&
-          !startsWith(github.head_ref, 'release-please--')
+          !startsWith(github.head_ref, 'releaser-pleaser--')
         uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}

.github/workflows/release-please.yml

@@ -1,3 +1,3 @@
 from __future__ import annotations
 
-__version__ = "2.3.0"  # x-release-please-version
+__version__ = "2.3.0"  # x-releaser-pleaser-version

.github/workflows/releaser-pleaser.yml

@@ -7,7 +7,7 @@
 
 setup(
     name="hcloud",
-    version="2.3.0",
+    version="2.3.0",  # x-releaser-pleaser-version
     keywords="hcloud hetzner cloud",
     description="Official Hetzner Cloud python library",
     long_description=readme,