chore(master): release 3.1.1-SNAPSHOT (#207)

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

Author: github-actions[bot]

README.md

@@ -69,7 +69,7 @@ repositories {
 }
 
 dependencies {
-    implementation 'io.github.yvasyliev:dz4j:3.1.0'
+    implementation 'io.github.yvasyliev:dz4j:3.1.1-SNAPSHOT'
 }
 ```
 
@@ -109,7 +109,7 @@ Snapshot:
     <dependency>
         <groupId>io.github.yvasyliev</groupId>
         <artifactId>dz4j</artifactId>
-        <version>3.1.0</version>
+        <version>3.1.1-SNAPSHOT</version>
     </dependency>
 </dependencies>
 ```

build.gradle

@@ -12,7 +12,7 @@ plugins {
 }
 
 group = 'io.github.yvasyliev'
-version = '3.1.0' // x-release-please-version
+version = '3.1.1-SNAPSHOT' // x-release-please-version
 
 java {
     toolchain {