Fix out-of-date packages breaking github workflow (#310)

* Update actions/cache to v4 in github workflow

* Update codecov.io upload action in github workflow

Author: austnwil

.github/workflows/main.yml

@@ -20,7 +20,7 @@ jobs:
           distribution: corretto
           java-version: ${{ matrix.java }}
       - name: Cache Gradle packages
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
@@ -40,10 +40,10 @@ jobs:
           java-version: 11
       - run: ./gradlew koverXmlReport
       - name: Upload Ion Schema Code Coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v5
         with:
-          file: ion-schema/build/reports/kover/report.xml
+          files: ion-schema/build/reports/kover/report.xml
       - name: Upload CLI Code Coverage
-        uses: codecov/codecov-action@v3
+        uses: codecov/codecov-action@v5
         with:
-          file: cli/build/reports/kover/report.xml
+          files: cli/build/reports/kover/report.xml