feat: allow setting port share protocol (#12383)

Co-authored-by: Garrett Delfosse <garrett@coder.com>

coderd/database/dump.sql

@@ -95,6 +95,11 @@ CREATE TYPE parameter_type_system AS ENUM (
     'hcl'
 );
 
+CREATE TYPE port_share_protocol AS ENUM (
+    'http',
+    'https'
+);
+
 CREATE TYPE provisioner_job_status AS ENUM (
     'pending',
     'running',
@@ -1027,7 +1032,8 @@ CREATE TABLE workspace_agent_port_share (
     workspace_id uuid NOT NULL,
     agent_name text NOT NULL,
     port integer NOT NULL,
-    share_level app_sharing_level NOT NULL
+    share_level app_sharing_level NOT NULL,
+    protocol port_share_protocol DEFAULT 'http'::port_share_protocol NOT NULL
 );
 
 CREATE TABLE workspace_agent_scripts (