Bump the parser from 4.1.11 to 4.2.6 (#51)

The nightly ran the newest published release through the same checks
the pinned version gets, and it passed all of them:

  - full test suite, no failures
  - every demo starts
  - the demo cases in .github/scripts/demo-cases.tsv produce their
    expected output

Opened automatically by .github/workflows/nightly.yml. Merge it if you
want the demos on 4.2.6; close it to stay on 4.1.11, and the nightly
will keep testing 4.2.6 without asking again until a newer release
appears.

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

connector/oracleConnector/pom.xml

@@ -31,7 +31,7 @@
 		<dependency>
 			<groupId>com.gudusoft</groupId>
 			<artifactId>gsqlparser</artifactId>
-			<version>4.1.11</version>
+			<version>4.2.6</version>
 		</dependency>
 		<dependency>
 			<groupId>com</groupId>

connector/snowflakeConnector/pom.xml

@@ -31,7 +31,7 @@
 		<dependency>
 			<groupId>com.gudusoft</groupId>
 			<artifactId>gsqlparser</artifactId>
-			<version>4.1.11</version>
+			<version>4.2.6</version>
 		</dependency>
 		<!-- Resolved from Maven Central rather than a jar you drop into lib/.
 		     3.12.9 was named here before, which Dependabot flagged for six

connector/sqlServerConnector/pom.xml

@@ -31,7 +31,7 @@
 		<dependency>
 			<groupId>com.gudusoft</groupId>
 			<artifactId>gsqlparser</artifactId>
-			<version>4.1.11</version>
+			<version>4.2.6</version>
 		</dependency>
 		<dependency>
 			<groupId>com.microsoft.sqlserver</groupId>

pom.xml

@@ -27,7 +27,7 @@
 		<maven.build.timestamp.format>yyyy-MMM-dd HH:mm z</maven.build.timestamp.format>
         <!-- Bump this to move every demo to a newer parser. Available versions:
              https://www.sqlparser.com/maven/com/gudusoft/gsqlparser/maven-metadata.xml -->
-        <gsp.core.version>4.1.11</gsp.core.version>
+        <gsp.core.version>4.2.6</gsp.core.version>
     </properties>
 
     <repositories>