ci: ensure prerelease is true and set strategy for action

Without prerelease set to true, we won't create releases as pre-releases
in GitHub if and only if it is actually a pre-release. It won't for
normal releases.

Author: thor

.github/release-please/release-please-config-alpha.json

@@ -7,11 +7,8 @@
   ],
   "packages": {
     ".": {
-      "bump-minor-pre-major": false,
-      "bump-patch-for-minor-pre-major": false,
       "prerelease": true,
-      "prerelease-type": "alpha",
-      "versioning": "prerelease"
+      "prerelease-type": "alpha"
     }
   },
   "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"

.github/release-please/release-please-config-beta.json

@@ -7,11 +7,8 @@
   ],
   "packages": {
     ".": {
-      "bump-minor-pre-major": false,
-      "bump-patch-for-minor-pre-major": false,
       "prerelease": true,
-      "prerelease-type": "beta",
-      "versioning": "prerelease"
+      "prerelease-type": "beta"
     }
   },
   "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"

.github/release-please/release-please-config-rc.json

@@ -7,11 +7,8 @@
   ],
   "packages": {
     ".": {
-      "bump-minor-pre-major": false,
-      "bump-patch-for-minor-pre-major": false,
       "prerelease": true,
-      "prerelease-type": "rc",
-      "versioning": "prerelease"
+      "prerelease-type": "rc"
     }
   },
   "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"

.github/workflows/release-please-prerelease.yaml

@@ -34,6 +34,7 @@ jobs:
           token: ${{ secrets.VATSCA_BOT_TOKEN }}
           target-branch: ${{ github.event.inputs.target_branch }}
           config-file: .github/release-please/release-please-config-alpha.json
+          versioning-strategy: prerelease
 
       - name: Run release-please (beta)
         if: ${{ github.event.inputs.prerelease_type == 'beta' }}
@@ -42,6 +43,7 @@ jobs:
           token: ${{ secrets.VATSCA_BOT_TOKEN }}
           target-branch: ${{ github.event.inputs.target_branch }}
           config-file: .github/release-please/release-please-config-beta.json
+          versioning-strategy: prerelease
 
       - name: Run release-please (rc)
         if: ${{ github.event.inputs.prerelease_type == 'rc' }}
@@ -50,3 +52,4 @@ jobs:
           token: ${{ secrets.VATSCA_BOT_TOKEN }}
           target-branch: ${{ github.event.inputs.target_branch }}
           config-file: .github/release-please/release-please-config-rc.json
+          versioning-strategy: prerelease

release-please-config.json

@@ -7,9 +7,7 @@
   ],
   "packages": {
     ".": {
-      "bump-minor-pre-major": false,
-      "bump-patch-for-minor-pre-major": false,
-      "prerelease": false
+      "prerelease": true
     }
   },
   "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json"