MINOR: Bump com.google.api.grpc:proto-google-common-protos from 2.49.0 to 2.50.1 (#542)

Bumps
[com.google.api.grpc:proto-google-common-protos](https://github.com/googleapis/sdk-platform-java)
from 2.49.0 to 2.50.1.

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

Author: dependabot[bot]

flight/flight-core/pom.xml

@@ -134,7 +134,7 @@ under the License.
     <dependency>
       <groupId>com.google.api.grpc</groupId>
       <artifactId>proto-google-common-protos</artifactId>
-      <version>2.49.0</version>
+      <version>2.50.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>