CI: build on latest clang-20 and cmake 3.31

Signed-off-by: Björn Svensson <bjorn.a.svensson@est.tech>

Author: bjosv

.github/workflows/ci.yml

@@ -22,23 +22,20 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        compiler: [gcc-14, clang-19]
-        cmake-version: [3.29]
+        compiler: [gcc-14, clang-20]
+        cmake-version: [3.31]
         cmake-build-type: [Release]
         sanitizer: ["", thread, undefined, leak, address]
         include:
           - compiler: clang-18
             cmake-version: 3.29
             cmake-build-type: Debug
-            sanitizer: ""
           - compiler: gcc-9
             cmake-version: 3.13
             cmake-build-type: Release
-            sanitizer: ""
           - compiler: clang-14
             cmake-version: 3.13
             cmake-build-type: Release
-            sanitizer: ""
     steps:
     - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Prepare