Add retry to npm installation of firebase-tools

[jonsimantov]

Description

Provide details of the change, and generalize the change in the PR title above.

Installing firebase-tools requires network connectivity - thus we should retry if it fails.

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Testing

Describe how you've tested these changes. Link any manually triggered Integration tests or CPP binary SDK Packaging Github Action workflows, if applicable.

Run integration tests, ensure no issues installing firebase-tools

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Type of Change

Place an x the applicable box:

• Bug fix. Add the issue # below if applicable.
• New feature. A non-breaking change which adds functionality.
• Other, such as a build process or documentation change.

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Notes

• Bug fixes and feature changes require an update to the Release Notes section of release_build_files/readme.md.
• Read the contribution guidelines CONTRIBUTING.md.
• Changes to the public API require an internal API review. If you'd like to help us make Firebase APIs better, please propose your change in a feature request so that we can discuss it together.

[github-actions]

❌  Integration test FAILED

Requested by @jonsimantov on commit fa6d390
Last updated: Tue Aug 30 15:16 PDT 2022
View integration test log & download artifacts

Failures	Configs
missing_log	[TEST] [ERROR] [Android] [All 3 os] [1/2 android_device: emulator_target]
firestore	[TEST] [FAILURE] [tvOS] [macos] [tvos_simulator] (1 failed tests)   CleanupTest.DocumentChangeIsBlankAfterCleanup [TEST] [FLAKINESS] [Android] [1/3 os: macos] [1/2 android_device: android_target] (1 failed tests)   CRASH/TIMEOUT

Add flaky tests to go/fpl-cpp-flake-tracker

[dconeybe]

FWIW, #1064 upgrades the node version from 14 to 16, which may fix the recent "npm ERR! cb() never called!" problems/flakiness with installing the Firestore emulator.