fix(deps): update dependency mysql:mysql-connector-java to v8.0.30 (#1187)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [mysql:mysql-connector-java](http://dev.mysql.com/doc/connector-j/en/) ([source](https://togithub.com/mysql/mysql-connector-j)) | `8.0.29` -> `8.0.30` | [![age](https://badges.renovateapi.com/packages/maven/mysql:mysql-connector-java/8.0.30/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/mysql:mysql-connector-java/8.0.30/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/mysql:mysql-connector-java/8.0.30/compatibility-slim/8.0.29)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/mysql:mysql-connector-java/8.0.30/confidence-slim/8.0.29)](https://docs.renovatebot.com/merge-confidence/) |

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Author: renovate-bot

bookshelf-standard/2-structured-data/pom.xml

@@ -63,7 +63,7 @@ Copyright 2016 Google Inc.
         <dependency>                        <!-- http://dev.mysql.com/doc/connector-j/en/ -->
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
-          <version>8.0.29</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
+          <version>8.0.30</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
         </dependency>
         <dependency>
           <groupId>com.google.api-client</groupId>

bookshelf-standard/3-binary-data/pom.xml

@@ -65,7 +65,7 @@ Copyright 2016 Google Inc.
         <dependency>                        <!-- http://dev.mysql.com/doc/connector-j/en/ -->
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
-          <version>8.0.29</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
+          <version>8.0.30</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
         </dependency>
         <dependency>
           <groupId>com.google.api-client</groupId>

bookshelf-standard/4-auth/pom.xml

@@ -66,7 +66,7 @@ Copyright 2016 Google Inc.
         <dependency>                        <!-- http://dev.mysql.com/doc/connector-j/en/ -->
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
-          <version>8.0.29</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
+          <version>8.0.30</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
         </dependency>
         <dependency>
           <groupId>com.google.api-client</groupId>

bookshelf-standard/5-logging/pom.xml

@@ -66,7 +66,7 @@ Copyright 2016 Google Inc.
         <dependency>                        <!-- http://dev.mysql.com/doc/connector-j/en/ -->
           <groupId>mysql</groupId>
           <artifactId>mysql-connector-java</artifactId>
-          <version>8.0.29</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
+          <version>8.0.30</version>  <!-- v5.x.x is Java 7, v6.x.x is Java 8 -->
         </dependency>
         <dependency>
           <groupId>com.google.api-client</groupId>