Simplify OS matrix in temurin.yml

Reduced the OS matrix to only include 'testtemurin' for both jobs.

Author: HarithaVattikuti

.github/workflows/temurin.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-22.04','windows-latest','macos-13','macos-latest','ubuntu-24.04','ubuntu-22.04-arm','testtemurin']
+        os: ['testtemurin']
         jdk: ['11','17','21']
     steps:
       - name: Setup Checkout
@@ -25,7 +25,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-22.04','windows-latest','macos-13','macos-latest','ubuntu-24.04','ubuntu-22.04-arm','testtemurin']
+        os: ['testtemurin']
         jdk: ['11','17','21']
     steps:
       - name: Setup Checkout