Bump aas4j.version from 1.0.2 to 1.0.3

Bumps `aas4j.version` from 1.0.2 to 1.0.3.

Updates `org.eclipse.digitaltwin.aas4j:aas4j-dataformat-core` from 1.0.2 to 1.0.3
- [Release notes](https://github.com/eclipse-digitaltwin/aas4j/releases)
- [Commits](eclipse-aas4j/aas4j@1.0.2...1.0.3)

Updates `org.eclipse.digitaltwin.aas4j:aas4j-dataformat-json` from 1.0.2 to 1.0.3
- [Release notes](https://github.com/eclipse-digitaltwin/aas4j/releases)
- [Commits](eclipse-aas4j/aas4j@1.0.2...1.0.3)

---
updated-dependencies:
- dependency-name: org.eclipse.digitaltwin.aas4j:aas4j-dataformat-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.eclipse.digitaltwin.aas4j:aas4j-dataformat-json
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -53,7 +53,7 @@
         </snapshotRepository>
     </distributionManagement>
     <properties>
-        <aas4j.version>1.0.2</aas4j.version>
+        <aas4j.version>1.0.3</aas4j.version>
         <checkstyle.version>10.18.2</checkstyle.version>
         <faaast.service.version>1.2.0-SNAPSHOT</faaast.service.version>
         <junit.version>4.13.2</junit.version>