Remove unnecessary JAVA_HOME from workflows (#32)

* Remove unnecessary JAVA_HOME from CAP workflow
* Remove unnecessary JAVA_HOME from express workflow

Author: finkmanAtSap

.github/workflows/build_and_test_cap.yml

@@ -18,8 +18,6 @@ on:
 jobs:
   npm:
     runs-on: [ ubuntu-latest ]
-    env:
-      JAVA_HOME: /usr/lib/jvm/java-17-openjdk
     strategy:
       matrix:
         node-version: [20.x, 22.x]
@@ -41,4 +39,4 @@ jobs:
     - run: npm ci
       working-directory: ams-cap-nodejs-bookshop
     - run: npm test
-      working-directory: ams-cap-nodejs-bookshop
+      working-directory: ams-cap-nodejs-bookshop

.github/workflows/build_and_test_expressjs.yml

@@ -18,8 +18,6 @@ on:
 jobs:
   npm:
     runs-on: [ ubuntu-latest ]
-    env:
-      JAVA_HOME: /usr/lib/jvm/java-17-openjdk
     strategy:
       matrix:
         node-version: [20.x, 22.x]
@@ -41,4 +39,4 @@ jobs:
     - run: npm ci
       working-directory: ams-express-shopping
     - run: npm test
-      working-directory: ams-express-shopping
+      working-directory: ams-express-shopping