fix(deps): update dependency com.slack.api:slack-api-client to v1.30.0

Author: renovate[bot]

pom.xml

@@ -188,7 +188,7 @@
     <dependency>
       <groupId>com.slack.api</groupId>
       <artifactId>slack-api-client</artifactId>
-      <version>1.29.2</version>
+      <version>1.30.0</version>
     </dependency>
 
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