Rust: Add telemtry tags to queries

[hvitved]

Before this PR, each scan would end with a summary like

|                            Metric                            |    Value     |
+--------------------------------------------------------------+--------------+
| Total number of Rust files that were extracted without error |           50 |
| Summary Statistics                                           | (28 results) |
| Nodes With Type At Length Limit                              |            4 |
| Summary Statistics Reduced                                   | (16 results) |
| Total number of Rust files that were extracted with errors   |            0 |
| Query Sink Counts                                            |  (5 results) |

Now, it instead ends with

|                            Metric                            | Value |
+--------------------------------------------------------------+-------+
| Total number of Rust files that were extracted without error |    50 |
| Total number of Rust files that were extracted with errors   |     0 |

I don't think the removed rows provide any relevant information, hence this PR. I'm unsure, though, whether this will break something in the tool status page?

[Copilot]

Pull request overview

This PR adjusts metadata on several Rust “summary” metric queries so they’re additionally tagged as telemetry, which (per the PR description) reduces what appears in the end-of-scan summary table.

Changes:

• Add the telemetry tag to rust/summary/summary-statistics.
• Add the telemetry tag to rust/summary/reduced-summary-statistics.
• Add the telemetry tag to rust/summary/query-sink-counts and rust/summary/nodes-at-type-path-length-limit.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
rust/ql/src/queries/summary/SummaryStatsReduced.ql	Adds telemetry to the query tags.
rust/ql/src/queries/summary/SummaryStats.ql	Adds telemetry to the query tags.
rust/ql/src/queries/summary/QuerySinkCounts.ql	Adds telemetry to the query tags.
rust/ql/src/queries/summary/NodesWithTypeAtLengthLimit.ql	Adds telemetry to the query tags.

[geoffw0]

What you show in the PR description looks good. I won't pretend to know for sure all the possibly effects of this tag, the query metadata doc page doesn't shed any light, I suggest we go ahead with the change and just keep an eye on things after it is merged.

[geoffw0]

Could we do the same change to the Swift versions of these queries (that I am generally responsible for) - swift/summary/summary-statistics and swift/summary/query-sinks at least.

[hvitved]

I think I would prefer doing that on a separate PR.