Get zed.dev working with new collab backend

Co-Authored-By: Antonio Scandurra <me@as-cii.com>

Cargo.lock

@@ -463,9 +463,11 @@ checksum = "f523b4e98ba6897ae90994bc18423d9877c54f9047b06a00ddc8122a957b1c70"
 dependencies = [
  "async-trait",
  "axum-core",
+ "base64 0.13.0",
  "bitflags",
  "bytes 1.0.1",
  "futures-util",
+ "headers",
  "http",
  "http-body",
  "hyper",
@@ -478,8 +480,10 @@ dependencies = [
  "serde",
  "serde_json",
  "serde_urlencoded",
+ "sha-1 0.10.0",
  "sync_wrapper",
  "tokio",
+ "tokio-tungstenite",
  "tower",
  "tower-http",
  "tower-layer",
@@ -2111,6 +2115,31 @@ dependencies = [
  "hashbrown 0.11.2",
 ]
 
+[[package]]
+name = "headers"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cff78e5788be1e0ab65b04d306b2ed5092c815ec97ec70f4ebd5aee158aa55d"
+dependencies = [
+ "base64 0.13.0",
+ "bitflags",
+ "bytes 1.0.1",
+ "headers-core",
+ "http",
+ "httpdate",
+ "mime",
+ "sha-1 0.10.0",
+]
+
+[[package]]
+name = "headers-core"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7f66481bfee273957b1f20485a4ff3362987f85b2c236580d81b4eb7a326429"
+dependencies = [
+ "http",
+]
+
 [[package]]
 name = "heck"
 version = "0.3.3"