feat: add auto group create from OIDC (#8884)

* add flag for auto create groups
* fixup! add flag for auto create groups
* sync missing groups
Also added a regex filter to filter out groups that are not
important

coderd/database/migrations/000148_group_source.down.sql

@@ -0,0 +1,8 @@
+BEGIN;
+
+ALTER TABLE groups
+	DROP COLUMN source;
+
+DROP TYPE group_source;
+
+COMMIT;

coderd/database/migrations/000148_group_source.up.sql

@@ -0,0 +1,15 @@
+BEGIN;
+
+CREATE TYPE group_source AS ENUM (
+    -- User created groups
+	'user',
+    -- Groups created by the system through oidc sync
+	'oidc'
+);
+
+ALTER TABLE groups
+	ADD COLUMN source group_source NOT NULL DEFAULT 'user';
+
+COMMENT ON COLUMN groups.source IS 'Source indicates how the group was created. It can be created by a user manually, or through some system process like OIDC group sync.';
+
+COMMIT;