[PATCH 2 of 2] Update Java compatibility

[Wald Commits]

# HG changeset patch
# User Tom Gottfried <tom at intevation.de>
# Date 1673961914 -3600
#      Tue Jan 17 14:25:14 2023 +0100
# Branch 3.2.x
# Node ID 823d4afb616ceb356bf8df9d92e5edd4bc6ee32c
# Parent  71188efb16b0a39c37ca4dfc53c6398ed797e34d
Update Java compatibility

diff -r 71188efb16b0 -r 823d4afb616c artifacts/pom.xml
--- a/artifacts/pom.xml	Tue Jan 17 14:24:25 2023 +0100
+++ b/artifacts/pom.xml	Tue Jan 17 14:25:14 2023 +0100
@@ -22,8 +22,8 @@
           <artifactId>maven-compiler-plugin</artifactId>
           <version>2.0.2</version>
           <configuration>
-              <source>1.7</source>
-              <target>1.7</target>
+              <source>1.8</source>
+              <target>1.8</target>
               <encoding>UTF-8</encoding>
               <showDeprecation>true</showDeprecation>
               <showWarnings>true</showWarnings>
diff -r 71188efb16b0 -r 823d4afb616c backend/pom.xml
--- a/backend/pom.xml	Tue Jan 17 14:24:25 2023 +0100
+++ b/backend/pom.xml	Tue Jan 17 14:25:14 2023 +0100
@@ -21,8 +21,8 @@
         <artifactId>maven-compiler-plugin</artifactId>
         <version>2.0.2</version>
         <configuration>
-          <source>1.7</source>
-          <target>1.7</target>
+          <source>1.8</source>
+          <target>1.8</target>
           <encoding>UTF-8</encoding>
           <showDeprecation>true</showDeprecation>
           <showWarnings>true</showWarnings>