Remove firebase workflows

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Name	Status	Preview	Comments	Updated (UTC)
tsu-website	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 16, 2023 3:56am

[Niyousha99]

Aside from the pipelines you removed, do we still need the following:

• https://github.com/techstartucalgary/tsu-website/blob/7ffe10f5e44430b707d7d2ca985463e2c9707d40/firebase.json#L5
• https://github.com/techstartucalgary/tsu-website/blob/7ffe10f5e44430b707d7d2ca985463e2c9707d40/.firebaserc#L3
• https://github.com/techstartucalgary/tsu-website/blob/7ffe10f5e44430b707d7d2ca985463e2c9707d40/contribution-guidelines.md?plain=1#L59

[Niyousha99]

Can you also please update our contributing guidelines: https://github.com/techstartucalgary/tsu-website/blob/7ffe10f5e44430b707d7d2ca985463e2c9707d40/contribution-guidelines.md?plain=1#L59