Bump helm-controller to fix issue with ChartContent

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

go.mod

@@ -119,7 +119,7 @@ require (
 	github.com/ipfs/go-ds-leveldb v0.5.0
 	github.com/ipfs/go-log/v2 v2.5.1
 	github.com/json-iterator/go v1.1.12
-	github.com/k3s-io/helm-controller v0.15.7
+	github.com/k3s-io/helm-controller v0.15.8
 	github.com/k3s-io/kine v0.11.0
 	github.com/klauspost/compress v1.17.2
 	github.com/kubernetes-sigs/cri-tools v0.0.0-00010101000000-000000000000

go.sum

@@ -786,8 +786,8 @@ github.com/k3s-io/etcd/raft/v3 v3.5.9-k3s1 h1:nlix2+EM1UDofoHgp/X2VHzMvJW7oYbZbE
 github.com/k3s-io/etcd/raft/v3 v3.5.9-k3s1/go.mod h1:WnFkqzFdZua4LVlVXQEGhmooLeyS7mqzS4Pf4BCVqXg=
 github.com/k3s-io/etcd/server/v3 v3.5.9-k3s1 h1:B3039IkTPnwQEt4tIMjC6yd6b1Q3Z9ZZe8rfaBPfbXo=
 github.com/k3s-io/etcd/server/v3 v3.5.9-k3s1/go.mod h1:GgI1fQClQCFIzuVjlvdbMxNbnISt90gdfYyqiAIt65g=
-github.com/k3s-io/helm-controller v0.15.7 h1:LSmT0vb8f+X6IH9IydPjU9dPvJOwILlk4L5S+oeHr5o=
-github.com/k3s-io/helm-controller v0.15.7/go.mod h1:AYitg40howLjKloL/zdjDDOPL1jg/K5R4af0tQcyPR8=
+github.com/k3s-io/helm-controller v0.15.8 h1:CAMEPmiqf4ugUCpZdICGINthCn+hkG/l1fadn8aVjfQ=
+github.com/k3s-io/helm-controller v0.15.8/go.mod h1:AYitg40howLjKloL/zdjDDOPL1jg/K5R4af0tQcyPR8=
 github.com/k3s-io/kine v0.11.0 h1:7tS0H9yBDxXiy1BgEEkBWLswwG/q4sARPTHdxOMz1qw=
 github.com/k3s-io/kine v0.11.0/go.mod h1:tjSsWrCetgaGMTfnJW6vzqdT/qOPhF/+nUEaE+eixBA=
 github.com/k3s-io/klog/v2 v2.90.1-k3s1 h1:QOJ/1xi4ERgpPGmSI3n1f989XjII+OvPdgdiMOKqV9s=