Mount emptDir for /tmp and add extraVolumes support (#866)

Signed-off-by: Marco Kilchhofer <mkilchhofer@users.noreply.github.com>

charts/argocd-applicationset/values.yaml

@@ -75,3 +75,12 @@ mountSSHKnownHostsVolume: true
 mountTLSCertsVolume: true
 mountGPGKeysVolume: false
 mountGPGKeyringVolume: true
+
+# -- List of extra mounts to add (normally used with extraVolumes)
+extraVolumeMounts: []
+  # - mountPath: /tmp/foobar
+  #   name: foobar
+# -- List of extra volumes to add
+extraVolumes: []
+  # - name: foobar
+  #   emptyDir: {}