Upload crashes to collab directly (#8649)

This lets us run rustc_demangle on the backtrace, which helps the Slack
view significantly.

We're also now uploading files to digital ocean's S3 equivalent (with a
1 month expiry) instead of to Slack.

This PR paves the way for (but does not yet implement) sending this data
to clickhouse too.

Release Notes:

- N/A

crates/collab/Cargo.toml

@@ -7,15 +7,11 @@ version = "0.44.0"
 publish = false
 license = "AGPL-3.0-or-later"
 
-[features]
-seed-support = ["reqwest"]
-
 [[bin]]
 name = "collab"
 
 [[bin]]
 name = "seed"
-required-features = ["seed-support"]
 
 [dependencies]
 anyhow.workspace = true
@@ -40,7 +36,7 @@ parking_lot.workspace = true
 prometheus = "0.13"
 prost.workspace = true
 rand.workspace = true
-reqwest = { version = "0.11", features = ["json"], optional = true }
+reqwest = { version = "0.11", features = ["json"] }
 rpc.workspace = true
 scrypt = "0.7"
 sea-orm = { version = "0.12.x", features = ["sqlx-postgres", "postgres-array", "runtime-tokio-rustls", "with-uuid"] }
@@ -50,6 +46,7 @@ serde_derive.workspace = true
 serde_json.workspace = true
 sha2.workspace = true
 sqlx = { version = "0.7", features = ["runtime-tokio-rustls", "postgres", "json", "time", "uuid", "any"] }
+rustc-demangle.workspace = true
 telemetry_events.workspace = true
 text.workspace = true
 time.workspace = true