chore(deps-dev): bump firebase-tools from 6.12.0 to 8.4.0

[dependabot-preview]

Bumps firebase-tools from 6.12.0 to 8.4.0.

Release notes

Sourced from firebase-tools's releases.

v8.4.0

• Support referencing variables in extension.yaml using ${param:PARAM_NAME} syntax
• Releases the Local Emulator UI, which now starts with firebase emulators:start.
• Fixes bug causing Hosting emulator to serve invalid /__/* files.
• Fixes bug in Firestore emulator for evaluating rules in query listening. (#2197)
• Fixes support in Firestore emulator for ?show_missing in listing collection.
• Supports ?disableTriggers=true for disabling function triggers in RTDB Emulator REST APIs.
• Includes other production Realtime Database improvements into the RTDB Emulator.
• Fixes bug where functions would run in local time zone instead of UTC (#2253).

v8.3.0

• Sets the FIREBASE_CONFIG environment variable during deploys of Cloud Functions for Firebase to fix "process.env.GCLOUD_PROJECT is not set" issues during deployment or execution.
• Fixes an issue where ext:list would fail when no extensions were installed.
• Fixes an issue where database emulator could not load rules from target configurations (#2184).
• Adds new API commands that handle list/create/delete operations on the Android SHA certificate hashes apps:android:sha:list, apps:android:sha:create, and apps:android:sha:delete.
• Fixes an issue where the CLI did not assume admin privileges when performing Firestore / RTDB emulator operations.
• Fixes an issue where the functions and hosting emulators would crash when not properly initialized (#2112).
• Improves logs when running emulators:start.
• Fixes an issue where use would allow an invalid project identifier.
• Fixes an issue where custom options passed to admin.initializeApp() in the functions emulator were improperly augmented.
• Changes firebasemods.*.* IAM permission checks to firebaseextensions.*.*
• Fixes an issue where unicode characters in auth tokens crashed callable auth (#2185).
• Fixes an issue where emulators could not be cleanly shut down if they had not started properly (#2228).

v8.2.0

• Improves login flow when using the --reauth flag.
• Increases minimum Node.js version to v8.6.0, accurately reflecting underlying requirements of the CLI tool.
• Updates firebase-functions and typescript dependencies in template files for firebase init.
• Adds the project number to the output when listing projects.
• Fixes possible bug with rules hot reloading showing empty content (#2132).

v8.1.1

• Fixes error when deploying Cloud Functions for Firebase from a project subdirectory. (#2138)

v8.1.0

• Important: Disables Node.js 6 runtime deploys for Cloud Functions. This change corrects a previous oversight that allowed Node.js 6 deploys past intended date of full deprecation. Please immediately upgrade Node.js 6 functions to a newer runtime to avoid service disruption.
• Fixes a bug where firebase-functions SDK version checking was unreliable and did not consider package-lock.json.
• Improves Cloud Functions error messaging around required APIs.
• Fixes rolling back an already failed transaction in Cloud Firestore Emulator.
• Fixes gRPC issue on large rules coverage reports in Cloud Firestore Emulator.

v8.0.3

• Improves error messages for Cloud Functions for Firebase deployment permissions. (#2086)
• Makes firestore:delete respect FIRESTORE_EMULATOR_HOST.
• Makes database:get, database:set, database:push, and database:update respect FIREBASE_DATABASE_EMULATOR_HOST.
• Makes functions:shell connect to running service emulators when appropriate.

v8.0.2

• Improves error messages for Cloud Functions for Firebase deployment permissions. (#2086)

... (truncated)

Commits

• 578c206 8.4.0
• 39673fa Support {param:PARAM_NAME} in extension.yaml on the CLI (#2250)
• de523a9 Unlock the Emulator UI (#2226)
• 710d0f2 Make functions run in GMT time zone (#2257)
• 101480b Release RTDB Emulator 4.5.0. (#2258)
• 079108e Link to #2197 in changelog. (#2260)
• 4c6b598 Release Cloud Firestore Emulator v1.11.4. (#2259)
• d884c04 Fix rules file check (#2254)
• 0bec742 Fix hosting rewrite regression
• 091f243 [firebase-release] Removed change log and reset repo after 8.3.0 release
• Additional commits viewable in compare view

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