bump version to v3.1

Signed-off-by: Matthew Fisher <matt.fisher@microsoft.com>
Signed-off-by: Matheus Hunsche <matheus.hunsche@ifood.com.br>

cmd/helm/testdata/output/version-client-shorthand.txt

@@ -1 +1 @@
-version.BuildInfo{Version:"v3.0", GitCommit:"", GitTreeState:"", GoVersion:""}
+version.BuildInfo{Version:"v3.1", GitCommit:"", GitTreeState:"", GoVersion:""}

cmd/helm/testdata/output/version-client.txt

@@ -1 +1 @@
-version.BuildInfo{Version:"v3.0", GitCommit:"", GitTreeState:"", GoVersion:""}
+version.BuildInfo{Version:"v3.1", GitCommit:"", GitTreeState:"", GoVersion:""}

cmd/helm/testdata/output/version-short.txt

@@ -1 +1 @@
-v3.0
+v3.1

cmd/helm/testdata/output/version-template.txt

@@ -1 +1 @@
-Version: v3.0
+Version: v3.1

cmd/helm/testdata/output/version.txt

@@ -1 +1 @@
-version.BuildInfo{Version:"v3.0", GitCommit:"", GitTreeState:"", GoVersion:""}
+version.BuildInfo{Version:"v3.1", GitCommit:"", GitTreeState:"", GoVersion:""}

internal/version/version.go

@@ -30,7 +30,7 @@ var (
 	// Increment major number for new feature additions and behavioral changes.
 	// Increment minor number for bug fixes and performance enhancements.
 	// Increment patch number for critical fixes to existing releases.
-	version = "v3.0"
+	version = "v3.1"
 
 	// metadata is extra build time data
 	metadata = ""