prepare gh workflows for zig release

.github/workflows/build-current-zig.yml

@@ -1,4 +1,4 @@
-name: Works with Zig 0.11.0
+name: Works with Zig 0.12.0
 on: 
   push:
     branches:
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: 0.11.0
+          version: 0.12.0
       - name: Check zig version
         run: zig version
       - name: Build all examples

.github/workflows/mastercheck-localhost.yml

@@ -1,47 +0,0 @@
-name: Works with Zig master (localhost patch)
-on: 
-  # push:
-  #   branches:
-  #   - master
-  # pull_request:
-  #   branches:
-  #   - master
-  # schedule:
-  #   - cron: "0 0 * * *"
-  workflow_dispatch:
-  
-jobs:
-  ci:
-    strategy:
-      matrix:
-        # platform: [ubuntu-latest, windows-latest, macos-latest]
-        platform: [ubuntu-latest]
-    runs-on: ${{ matrix.platform }}
-    steps:
-      - uses: actions/checkout@v3
-      - uses: goto-bus-stop/setup-zig@v2
-        with:
-          version: master
-      - uses: actions/setup-python@v4
-        with:
-          python-version: '3.10' 
-      - name: wget
-        uses: wei/wget@v1
-        with:
-          args: https://github.com/zigzap/facil.io/archive/refs/tags/zap-0.0.8.tar.gz
-      - name: Check zig version
-        run: zig version
-      - name: hack build.zig.zon
-        run: |
-          mv build.zig.zon build.zig.zon.moved && mv build.zig.zon.localhost build.zig.zon && python -m http.server &
-          sleep 3
-          zig build
-      - name: Build all examples
-        run: zig build all
-      - name: Run authentication tests
-        run: zig build test-authentication
-      - name: Run http parameter tests
-        run: zig build test-httpparams
-      - name: Run sendfile tests
-        run: zig build test-sendfile
-

.github/workflows/mastercheck.yml

@@ -2,10 +2,10 @@ name: Works with Zig master
 on: 
     push:
       branches:
-      - zig-0.12.0
+      - zig-0.13.0
     pull_request:
       branches:
-      - zig-0.12.0
+      - zig-0.13.0
     schedule:
       - cron: "0 0 * * *"
     workflow_dispatch:
@@ -57,14 +57,13 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           TAG_NAME: ${{ steps.tag.outputs.version }}
         run: |
-          zig-out/bin/announceybot update-readme "zig-0.12.0"
+          zig-out/bin/announceybot update-readme "zig-0.13.0"
   
       - name: Commit and push if it has changed
         run: |
           git diff
-          git checkout zig-0.12.0
+          git checkout zig-0.13.0
           git config --local user.email "action@github.com"
           git config --local user.name "GitHub Action"
           git commit -am "Update README"
-          git push origin zig-0.12.0
->>>>>>> zig-0.12.0
+          git push origin zig-0.13.0