[v9.3.x] Plugins: add option to proxy ds connections through a secure socks proxy (#59254) (#60643)

Plugins: add option to proxy ds connections through a secure socks proxy (#59254)

* Plugins: add feature to proxy data source connections

(cherry picked from commit 6805c951e9)

conf/defaults.ini

@@ -1343,3 +1343,14 @@ index_update_interval = 10s
 # Move a specific app plugin page (referenced by its `path` field) to a specific navigation section
 # Format: <Page URL> = <Section ID> <Sort Weight>
 [navigation.app_standalone_pages]
+
+
+#################################### Secure Socks5 Datasource Proxy #####################################
+[secure_socks_datasource_proxy]
+enabled = false
+root_ca_cert =
+client_key =
+client_cert =
+server_name =
+# The address of the socks5 proxy datasources should connect to
+proxy_address =

conf/sample.ini

@@ -1269,3 +1269,13 @@
 [navigation.app_standalone_pages]
 # The following will move the page with the path "/a/my-app-id/starred-content" from `my-app-id` to the `starred` section
 # /a/my-app-id/starred-content = starred
+
+#################################### Secure Socks5 Datasource Proxy #####################################
+[secure_socks_datasource_proxy]
+; enabled = false
+; root_ca_cert =
+; client_key =
+; client_cert = 
+; server_name =
+# The address of the socks5 proxy datasources should connect to
+; proxy_address =