Drop Java 8 API compatibility, enforce Java 11 API compatibility (#1093)

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>
Co-authored-by: Artur Ciocanu <ciocanu@adobe.com>

Author: artur-ciocanu

pom.xml

@@ -22,8 +22,10 @@
     <maven-dependency-plugin.version>3.1.1</maven-dependency-plugin.version>
     <maven-antrun-plugin.version>1.8</maven-antrun-plugin.version>
     <maven-deploy-plugin.version>2.7</maven-deploy-plugin.version>
+    <maven-compiler-plugin.version>3.13.0</maven-compiler-plugin.version>
     <maven.compiler.source>11</maven.compiler.source>
     <maven.compiler.target>11</maven.compiler.target>
+    <maven.compiler.release>11</maven.compiler.release>
     <maven.deploy.skip>true</maven.deploy.skip>
     <!--
         manually declare durabletask-client's jackson dependencies for workflows sdk
@@ -114,6 +116,16 @@
   <build>
     <pluginManagement>
       <plugins>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <version>${maven-compiler-plugin.version}</version>
+          <configuration>
+            <source>${maven.compiler.source}</source>
+            <target>${maven.compiler.target}</target>
+            <release>${maven.compiler.release}</release>
+          </configuration>
+        </plugin>
         <plugin>
           <groupId>org.apache.maven.plugins</groupId>
           <artifactId>maven-surefire-plugin</artifactId>
@@ -152,28 +164,6 @@
           </execution>
         </executions>
       </plugin>
-      <plugin>
-        <groupId>org.codehaus.mojo</groupId>
-        <artifactId>animal-sniffer-maven-plugin</artifactId>
-        <version>1.23</version>
-        <configuration>
-          <signature>
-            <groupId>org.codehaus.mojo.signature</groupId>
-            <artifactId>java18</artifactId>
-            <version>1.0</version>
-          </signature>
-          <skip>false</skip>
-        </configuration>
-        <executions>
-          <execution>
-            <id>enforce-java-8-compatibility</id>
-            <phase>process-classes</phase>
-            <goals>
-              <goal>check</goal>
-            </goals>
-          </execution>
-        </executions>
-      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-gpg-plugin</artifactId>