Bad handshake for servers using wss.

[wms2537]

I wonder why is the protocol ws being hardcoded. For servers which require wss, it results in a websocket: bad handshake error.

https://github.com/fiskaly/grafana.surrealdb/blob/f1681f35603219b882e10dd76c70aed9ef81d26b/pkg/plugin/datasource.go#L97C2-L97C57

[ppaulweber]

@wms2537 thanks for pointing this our, I'll propose a backwards compatible change by allowing in an upcoming change and rollout that you can specify the location property in the following three flavors:

• <location> which get's pre-fixed and post-fixed to ws://<location>/rpc
• ws://<location> which get's post-fixed to ws://<location>/rpc
• wss://<location> which get's post-fixed to wss://<location>/rpc