updated dagger [ci skip]

main/pom.xml

@@ -37,7 +37,7 @@
 		<easybind.version>1.0.3</easybind.version>
 
 		<guava.version>27.0-jre</guava.version>
-		<dagger.version>2.19</dagger.version>
+		<dagger.version>2.20</dagger.version>
 		<gson.version>2.8.5</gson.version>
 
 		<slf4j.version>1.7.25</slf4j.version>
@@ -317,8 +317,6 @@
 				<artifactId>maven-compiler-plugin</artifactId>
 				<version>3.8.0</version>
 				<configuration>
-					<source>9</source>
-					<target>9</target>
 					<release>9</release>
 					<annotationProcessorPaths>
 						<path>