Run tests using clang 16

Author: danog

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
         php: ["8.0", "8.1", "8.2", "8.3"]
         rust: [stable, nightly]
-        clang: ["14"]
+        clang: ["16"]
         phpts: [ts, nts]
         exclude:
           # ext-php-rs requires nightly Rust when on Windows.

.github/workflows/docs.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         os: ["ubuntu-latest"]
         php: ["8.2"]
-        clang: ["14"]
+        clang: ["17"]
         mdbook: ["latest"]
     steps:
       - name: Checkout code