Bump postgresql from 42.2.18 to 42.2.19 in /PgBulkInsert

Bumps [postgresql](https://github.com/pgjdbc/pgjdbc) from 42.2.18 to 42.2.19.
- [Release notes](https://github.com/pgjdbc/pgjdbc/releases)
- [Changelog](https://github.com/pgjdbc/pgjdbc/blob/REL42.2.19/CHANGELOG.md)
- [Commits](pgjdbc/pgjdbc@REL42.2.18...REL42.2.19)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

PgBulkInsert/pom.xml

@@ -130,7 +130,7 @@
         <maven.compiler.target>1.8</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 
-        <postgresql.version>42.2.18</postgresql.version>
+        <postgresql.version>42.2.19</postgresql.version>
         <junit.version>4.13.1</junit.version>
     </properties>