♻️ Refactor(v3): Update SSE recipe to use Buffered Streaming

[grivera64]

Is your feature request related to a problem?

This issue is related to the recently merged PR for fiber/v3 the main repo: fiber#3131.

This issue proposes to update the SSE recipe to take advantage of this new v3 feature.

Describe the solution you'd like

This issue is to track updating the call c.Status(fiber.StatusOK).Context().SetBodyStreamWriter(fasthttp.StreamWriter(...)) to instead use c.Status(fiber.StatusOK).SendStreamWriter(...).

We should also update the markdown tutorial as well for SSE.

Describe alternatives you've considered

N/A

Additional context

This update is from a v2->v3 change. It may be a good idea to use a separate migration branch for this change to later merge into master when v3 is officially released.

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[grivera64]

I was thinking, should we make a main branch to house all v2->v3 updates (e.g. v3-migration)? This way, we can contain all v3 updates into one simple merge once v3 is officially released.

If not, I can add this make a PR to a separate branch (e.g. v3-migration/sse-using-buffered-streams) and we can merge it directly into master once v3 is released.

[gaby]

@grivera64 Let me cleanup the readmes/go.mods first. Then we could prob do that