chore: Bump com.vaadin:license-checker from 2.0.0-beta6 to 2.0.0-rc1 (#7973)

Bumps [com.vaadin:license-checker](https://github.com/vaadin/license-checker-vaadin10) from 2.0.0-beta6 to 2.0.0-rc1.
- [Commits](https://github.com/vaadin/license-checker-vaadin10/commits)

---
updated-dependencies:
- dependency-name: com.vaadin:license-checker
  dependency-version: 2.0.0-rc1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Zhe Sun <[email protected]>

Author: 2 people

vaadin-spreadsheet-flow-parent/vaadin-spreadsheet-flow/pom.xml

@@ -30,7 +30,7 @@
         <dependency>
             <groupId>com.vaadin</groupId>
             <artifactId>license-checker</artifactId>
-            <version>2.0.0-beta6</version>
+            <version>2.0.0-rc1</version>
             <scope>provided</scope>
         </dependency>
         <dependency>