Bump version and reduce BlueMapAPI version...

...to ensure compatibility with the current latest stable release of BlueMap: 3.20.
BlueMap 4 is amazing, but it's not stable yet, so I shouldn't target my addons to that, yet.

pom.xml

@@ -6,7 +6,7 @@
 
 	<groupId>com.technicjelle</groupId>
 	<artifactId>BlueMapSignExtractor</artifactId>
-	<version>1.2</version>
+	<version>1.3</version>
 	<packaging>jar</packaging>
 
 	<name>BlueMapSignExtractor</name>
@@ -116,7 +116,7 @@
 		<dependency>
 			<groupId>com.github.BlueMap-Minecraft</groupId>
 			<artifactId>BlueMapAPI</artifactId>
-			<version>2.7.0</version>
+			<version>2.6.2</version>
 			<scope>provided</scope>
 		</dependency>
 		<dependency>