chore: bump version to 0.1.0 and remove main branch from maven workflow

Bump version in pom.xml and build.gradle for v0.1.0 release.
Remove stale main branch reference from maven workflow since
default branch is master.

Author: kwent

.github/workflows/maven.yml

@@ -7,9 +7,9 @@ name: Java CI with Maven
 
 on:
   push:
-    branches: [ main, master ]
+    branches: [ master ]
   pull_request:
-    branches: [ main, master ]
+    branches: [ master ]
 
 jobs:
   build:

build.gradle

@@ -4,7 +4,7 @@ apply plugin: 'java'
 apply plugin: 'com.diffplug.spotless'
 
 group = 'com.rootly.client'
-version = '0.0.4'
+version = '0.1.0'
 
 buildscript {
     repositories {

pom.xml

@@ -5,7 +5,7 @@
     <artifactId>rootly</artifactId>
     <packaging>jar</packaging>
     <name>rootly-java</name>
-    <version>0.0.4</version>
+    <version>0.1.0</version>
     <url>https://github.com/rootlyhq/rootly-java</url>
     <description>Java client library for Rootly incident management platform</description>
     <scm>