feat(attributes): Add browser.connection.rtt attribute

[Lms24]

Our JS SDK records a connection.rtt measurement, measuring the estimated request RTT based on the current connection quality. This is not really a performance indicator of made requests, but rather just an estimate how fast a request/response cycle will likely be handled. Anyway, we record this on the pageload and navigation spans (not sure about the value tbh but we do).

For converting this measurement to an attribute, I for now decided to use the browser namespace due to this value being a coarse estimation. We could use the network namespace and add something like network.connection.rtt. Just not sure if we want these estimations connected to the more general attribute. But tbh, LOGAF-L, so whatever reviewers prefer.

[github-actions]

Semver Impact of This PR

🟡 Minor (new features)

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New Features ✨

Attributes

• Add browser.connection.rtt attribute by Lms24 in #237

• Add attribute gen_ai.response.time_to_first_token by constantinius in #227
• Add sentry.status_code attribute by mjq in #223
• Backfill db.system attribute by mjq in #224
• Add sentry.category attribute by mjq in #218
• Add sentry.normalized_db_query.hash by Ahmed-Labs in #200

Other

• (ai) Add input tokens cache write by shellmayr in #217
• (gen_ai) Add new Gen AI attributes by obostjancic in #221
• Add page listing all attributes by Lms24 in #207

Bug Fixes 🐛

Attributes

• Migrating several numeric fields to pii=maybe by constantinius in #228
• Improve gen_ai.operation.name description by obostjancic in #225

Other

• (db) Clarify db.query.text and db.query.summary attributes by Lms24 in #208

Internal Changes 🔧

Attributes

• Update sentry.span.source with known values by Lms24 in #214
• Add legacy attribute definitions for transaction spans by Ahmed-Labs in #212
• Normalize deprecated db attribute names by Ahmed-Labs in #199

Deps Dev

• Bump tar from 7.5.3 to 7.5.4 by dependabot in #226
• Bump tar from 7.4.3 to 7.5.3 by dependabot in #220

Repo

• Add Claude Code settings with basic permissions by philipphofmann in #222
• Unstale yarn lock by Lms24 in #215

Other

• (ai) Remove gen_ai_usage_total_cost attribute by vgrozdanic in #206
• (lint) Don't lint Claude's config files by mjq in #219
• (release) Switch from action-prepare-release to Craft by BYK in #216
• Add statuses permission to Changelog Preview by lcian in #232

Other

• Add @getsentry/ingest to CODEOWNERS by cleptric in #236
• Update CODEOWNERS to change global ownership by cleptric in #230

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