moved cache Maven to before build ci

Author: ryma2fhir

.github/workflows/testingbranch.yml

@@ -28,15 +28,15 @@ jobs:
           ref: main2
           path: validation-service-fhir-r4
 
-      - name: Install npm
-        run: npm ci
-
       - name: Cache Maven packages
         uses: actions/cache@v3
         with:
           path: ~/.m2
           key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
           restore-keys: ${{ runner.os }}-m2-
+          
+      - name: Install npm
+        run: npm ci
 
       - name: Update FHIR Validator build
         run: cd validation-service-fhir-r4; mvn clean package