[DRAFT] Remove query_builder from mypy typing-issues list

[cursor]

Summary

• remove sentry.snuba.metrics.query_builder from pyproject.toml's "sentry modules with typing issues" override list
• fix mypy issues in src/sentry/snuba/metrics/query_builder.py by tightening/narrowing types around action-by fields, metric condition rhs handling, interval checks, and metric key typing
• preserve rich metric params (including team_key_transaction tuple-list params) while satisfying stricter static typing

Testing

• PATH=".venv/bin:$PATH" .venv/bin/python -m tools.mypy_helpers.mypy_without_ignores src/sentry/snuba/metrics/query_builder.py
• PATH=".venv/bin:$PATH" .venv/bin/mypy src/sentry/snuba/metrics/query_builder.py
• PATH=".venv/bin:$PATH" .venv/bin/prek run -q
• SENTRY_SKIP_SERVICE_VALIDATION=1 PATH=".venv/bin:$PATH" .venv/bin/pytest -n3 -svv --reuse-db "tests/sentry/snuba/metrics/test_query_builder.py::test_only_can_groupby_operations_can_be_added_to_groupby[valid grouping by metrics expression]" "tests/sentry/snuba/metrics/test_query_builder.py::test_only_can_filter_operations_can_be_added_to_where[valid filtering by metrics expression]"
• attempted broader tests/sentry/snuba/metrics/test_query_builder.py, but this environment lacks local Postgres; Redis dependency was remediated locally and remaining failures were reduced to DB-related setup/runtime warnings

Review

@armenzg please review this draft PR.

Legal Boilerplate

Look, I get it. The entity doing business as "Sentry" was incorporated in the State of Delaware in 2015 as Functional Software, Inc. and is gonna need some rights from me in order to utilize my contributions in this here PR. So here's the deal: I retain all rights, title and interest in and to my contributions, and by keeping this boilerplate intact I confirm that Sentry can use, modify, copy, and redistribute my contributions, under Sentry's choice of terms.