deps: update dependency org.checkerframework:checker-qual to v3.28.0 (#940)

Author: renovate-bot

third-party-dependencies/pom.xml

@@ -68,7 +68,7 @@
     <httpcomponents.httpcore.version>4.4.16</httpcomponents.httpcore.version>
     <httpcomponents.httpclient.version>4.5.13</httpcomponents.httpclient.version>
     <!-- ensure checker-qual version matches what Guava uses -->
-    <checker-qual.version>3.27.0</checker-qual.version>
+    <checker-qual.version>3.28.0</checker-qual.version>
     <perfmark-api.version>0.26.0</perfmark-api.version>
   </properties>