Query: InfluxDB 1 raw query escaping adds extra backslashes

### What happened? Raw query on an InfluxDB v1 datasource fails with: ``` InfluxDB returned error: error parsing query: found \, expected identifier, string, number, bool at line 1, char 48 ``` ### What did you expect to happen? Query working. ### Did this work before? I don't know. ### How do we reproduce it? 1. Submitting this query: ``` SELECT non_negative_derivative(LAST("sent")) / $__interval_ms FROM "eth_out" WHERE $timeFilter AND "mac_address" =~ /^$mac_address$/ GROUP BY time($__interval) fill(previous) ``` Results in this request being sent to InfluxDB (url-decoded): ``` /query?db=buddy&epoch=ms&q=SELECT+non_negative_derivative(LAST("sent"))+/+\500+FROM+"eth_out"+WHERE+time+>=+1763656840550ms+and+time+<=+1763657140550ms+AND+"mac_address"+=~+/^10:9c:70:30:b9:69$/+GROUP+BY+time(\500ms)+fill(previous) ``` Note the backslashes. This is what's shown in Query inspector: ``` traceId:undefined request:Object url:"api/ds/query?ds_type=influxdb&requestId=SQR174" method:"POST" data:Object queries:Array[1] 0:Object datasource:Object refId:"A" query:"SELECT non_negative_derivative(LAST(\"sent\")) / \\$__interval_ms FROM \"eth_out\" WHERE $timeFilter AND \"mac_address\" =~ /^10:9c:70:30:b9:69$/ GROUP BY time(\\$__interval) fill(previous)" rawQuery:true ... ``` Random changes to the raw query make the issue go away, e.g. these (seem to) work 🥴 🤯: ``` SELECT non_negative_derivative(LAST("sent")) * $__interval_ms FROM "eth_out" WHERE $timeFilter AND "mac_address" =~ /^$mac_address$/ GROUP BY time($__interval) fill(previous) ``` (multiplication instead of division by $__interval_ms) ``` SELECT non_negative_derivative(LAST("sent")) / $__interval_ms FROM "eth_out" WHERE $timeFilter GROUP BY time($__interval) fill(previous) ``` (removal of the mac_address condition from WHERE) ### Is the bug inside a dashboard panel? | Key | Value | |--|--| | Panel | timeseries @ 12.3.0 | | Grafana | Grafana v12.3.0 (20051fb1fc) // Open Source | <details><summary>Panel debug snapshot dashboar…