Add PHP 8.5 to CI test matrix (#198)

- Disable fail-fast to see results for all PHP versions
- Fix APCng overflow warning on PHP 8.5 when casting out-of-range
  float to int in convertToIncrementalInteger()

Signed-off-by: Simon Podlipsky <simon@podlipsky.net>
Co-authored-by: Lukas Kämmerling <lukas.kaemmerling@hetzner-cloud.de>

Author: simPod

.github/workflows/tests.yml

@@ -6,9 +6,9 @@ jobs:
   test:
     runs-on: ubuntu-latest
     strategy:
-      fail-fast: true
+      fail-fast: false
       matrix:
-        php: [ 8.1, 8.2, 8.3, 8.4 ]
+        php: [ 8.1, 8.2, 8.3, 8.4, 8.5 ]
         redis-version: [ 5, 6, 7, 8 ]
 
     name: P${{ matrix.php }} - Redis ${{ matrix.redis-version }}

src/Prometheus/Storage/APCng.php

@@ -825,7 +825,7 @@ private function decrementKeyWithValue(string $key, $val): void
      */
     private function convertToIncrementalInteger($val): int
     {
-        return intval($val * $this->precisionMultiplier);
+        return @intval($val * $this->precisionMultiplier);
     }
 
     private function convertIncrementalIntegerToFloat(int $val): float