Update ci.yml to remove breaking optional step

As this optional feature is breaking the build with the errors below, we'd better do without for now.

```
Error: TypeError: Cannot read properties of undefined (reading 'forEach')
Error: Error: Could not generate a snapshot of the dependencies; Cannot read properties of undefined (reading 'forEach')
Error: Failed to generate a dependency snapshot, check logs for more details, Error: Could not generate a snapshot of the dependencies; Cannot read properties of undefined (reading 'forEach')
```

.github/workflows/ci.yml

@@ -29,7 +29,4 @@ jobs:
         cache: maven
     - name: Build with Maven
       run: mvn -B package --file pom.xml
-
-    # Optional: Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive
-    - name: Update dependency graph
-      uses: advanced-security/maven-dependency-submission-action@571e99aab1055c2e71a1e2309b9691de18d6b7d6
+