feat(alerts): Add silent alerts field to condition terms

[gffuentes]

Description

Adds support for Silent Alerts field (disable_health_status_reporting) for all conditions

Go client side: newrelic/newrelic-client-go#1283

Fixes # https://new-relic.atlassian.net/browse/NR-367381

Type of change

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• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

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• My commit message follows conventional commits
• My code is formatted to Go standards
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• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes. Go here for instructions on running tests locally.

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[pranav-new-relic]

Hey @gffuentes, FYI: another PR dealing in NRQL Alert Conditions, #2844, authored by your colleague at DCON, @akane0915 is probably going out tomorrow, so you might land into a bunch of merge conflicts - just wanted to let you know that you might need to go through this.

Also, I'm kinda curious to know why you've added changes to a bunch of other resources (nil default values) - if there's a specific reason to this :) we'd preferably want to have such changes in an isolated PR since this PR seems to be about alerts; but yeah, just wanted to let you know. Thanks!

[gffuentes]

got it, thanks @pranav-new-relic - re: unrelated resource updated, linter was mad about those things so i thought i'd toss them in but i'll remove them if we prefer separate PRs for that kind of thing.