auth-proxy: verify group membership (#105)

* auth-proxy: verify group membership

* memberships: install memberships app and use it in few apps

* app-repo: render auth

* installer: always use external dependencies option in app configs

* installer: fix auth handling

* auth-proxy: configure membership-addr and groups flags in helm chart

* installer: fix indentation

* app-manager: fix how auth block is rendered

---------

Co-authored-by: Giorgi Lekveishvili <lekva@gl-mbp-m1-max.local>
diff --git a/core/auth/proxy/go.sum b/core/auth/proxy/go.sum
new file mode 100644
index 0000000..76a41df
--- /dev/null
+++ b/core/auth/proxy/go.sum
@@ -0,0 +1,2 @@
+golang.org/x/exp v0.0.0-20240318143956-a85f2c67cd81 h1:6R2FC06FonbXQ8pK11/PDFY6N6LWlf9KlzibaCapmqc=
+golang.org/x/exp v0.0.0-20240318143956-a85f2c67cd81/go.mod h1:CQ1k9gNrJ50XIzaKCRR2hssIjF07kZFEiieALBM/ARQ=