Update glean-parser requirement from ~=20.2.0 to ~=21.0.1

[dependabot]

Updates the requirements on glean-parser to permit the latest version.

Release notes

Sourced from glean-parser's releases.

v21.0.1

• Swift: Fix argument labels in labeled *distributions (#859)

Changelog

Sourced from glean-parser's changelog.

21.0.1

• Swift: Fix argument labels in labeled *distributions (#859)

21.0.0

• BREAKING CHANGE: Generate labeled {custom|memory|timing} distribution for mobile (#857)
• Allow categories to have subcategories longer than 29 characters (bug 2062403)

20.2.0

• Allow renaming of fields when serializing metrics (mozilla/glean-dictionary#2309)

20.1.0

• Allow to overwrite date to check expiry against using the SOURCE_DATE_EPOCH environment variable (bug 2052175)
• Disable the COMMON_PREFIX lint. (bug 2052480) This is not a breaking change: We keep the name, but the lint will never trigger.

20.0.1

• Ensure in_session is present for all metrics in the object model, like the other CommonMetricData args (bug 2046193).

20.0.0

• BREAKING CHANGE: Go server: replaced the go_server_pubsub outputter with a transport option on go_server (-s transport=logging|pubsub|combined, default logging); combined emits both transports in one file and ping params gain an optional DocumentID to share a document_id across them for gradual migration (#849)
• Add support for Glean session implementation (#840)

19.2.0

• Go server template: add go_server_pubsub outputter to support direct Pub/Sub delivery (DENG-9533)

19.1.1

• Use JSON serialization for on-disk caching

19.1.0

• Go server: Add support for labeled_boolean metrics with static labels (AE-1250)
• BUGFIX: Go server: Serialize nil string_list metrics as empty arrays instead of null (#837)
• Add support to target glean_sym (the new experimental Glean Rust API) (#841)

19.0.0

• Python server: Support optional metrics (#828)
• BUGFIX: Correct event timestamp values in server language templates (#831)
• Remove the coverage subcommand. The SDK also removed metric testing covergae (#832)

18.2.0

... (truncated)

Commits

• bdc99c9 Release v21.0.1
• 21616e2 Swift: Fix argument labels in labeled *distributions
• 1456916 Release v21.0.0
• 8e6434e bug 2062403 - Allow 'subcategories' longer than 29 characters
• 20eeb93 Kotlin: Generate labeled *distributions (and wrap everything in CommonLabeled...
• 67995b1 Swift: Generate labeled *distributions (and wrap everything in CommonLabeledM...
• See full diff in compare view

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