Merge pull request emacs-lsp#170 from jcs-PR/test/29

test: Emacs 29.1

Author: michaelpj

.github/workflows/test.yml

@@ -11,6 +11,7 @@ on:
 jobs:
   build:
     runs-on: ${{ matrix.os }}
+    continue-on-error: ${{ matrix.experimental }}
     strategy:
       fail-fast: false
       matrix:
@@ -19,7 +20,18 @@ jobs:
           - 26.3
           - 27.2
           - 28.2
-          - snapshot
+          - 29.1
+        experimental: [false]
+        include:
+          - os: ubuntu-latest
+            emacs-version: snapshot
+            experimental: true
+          - os: macos-latest
+            emacs-version: snapshot
+            experimental: true
+          - os: windows-latest
+            emacs-version: snapshot
+            experimental: true
 
     steps:
     - uses: actions/checkout@v3