Update version in readme and changelog

CHANGELOG.adoc

@@ -2,6 +2,8 @@
 
 == Unreleased
 
+== Version 2.10.0
+
 * Add a new goal, `resolve`, for downloading the helm binary as a separate step. This will still be done automatically
   by the other goals, but it can be used when running maven builds in parallel, so the helm binary doesn't need to be
   downloaded twice and to prevent concurrency issues.

README.adoc

@@ -20,11 +20,11 @@ Add the following to your `pom.xml`
     <plugin>
       <groupId>com.deviceinsight.helm</groupId>
       <artifactId>helm-maven-plugin</artifactId>
-      <version>2.9.0</version>
+      <version>2.10.0</version>
       <configuration>
         <chartName>my-chart</chartName>
         <chartRepoUrl>https://charts.helm.sh/stable</chartRepoUrl>
-        <helmVersion>3.4.2</helmVersion>
+        <helmVersion>3.5.2</helmVersion>
         <strictLint>true</strictLint>
         <valuesFile>src/test/helm/my-chart/values.yaml</valuesFile>
       </configuration>
@@ -143,11 +143,11 @@ To use the `deployAtEnd` functionality it's mandatory to put the Helm Maven Plug
     <plugin>
       <groupId>com.deviceinsight.helm</groupId>
       <artifactId>helm-maven-plugin</artifactId>
-      <version>2.9.0</version>
+      <version>2.10.0</version>
       <configuration>
         <chartName>my-chart</chartName>
         <chartRepoUrl>https://charts.helm.sh/stable</chartRepoUrl>
-        <helmVersion>3.4.2</helmVersion>
+        <helmVersion>3.5.2</helmVersion>
         <strictLint>true</strictLint>
         <valuesFile>src/test/helm/my-chart/values.yaml</valuesFile>
         <deployAtEnd>true</deployAtEnd>
@@ -177,7 +177,7 @@ Problem:: The following error message is a common source of trouble, lately:
 
 ...
 
-[ERROR] Failed to execute goal com.deviceinsight.helm:helm-maven-plugin:2.9.0:package (default) on project my-project: Error creating helm chart: When executing '/home/user/.m2/repository/com/deviceinsight/helm/helm/2.16.2/helm-2.16.2-linux-amd64.binary init --client-only' got result code '1' -> [Help 1]
+[ERROR] Failed to execute goal com.deviceinsight.helm:helm-maven-plugin:2.10.0:package (default) on project my-project: Error creating helm chart: When executing '/home/user/.m2/repository/com/deviceinsight/helm/helm/2.16.2/helm-2.16.2-linux-amd64.binary init --client-only' got result code '1' -> [Help 1]
 ----
 Solution:: This is likely due to an old version of helm itself. Make sure to configure `<helmVersion>` to a version >= 3.4.0 or, if you are still using Helm 2, a version >= 2.17.0 (https://github.com/helm/charts#%EF%B8%8F-deprecation-and-archive-notice[background information]).
 . {blank}