Replace reqwest with hyper

Cargo.toml

@@ -47,6 +47,7 @@ async-smtp = { version = "0.9", default-features = false, features = ["runtime-t
 async_zip = { version = "0.0.12", default-features = false, features = ["deflate", "fs"] }
 base64 = { workspace = true }
 brotli = { version = "6", default-features=false, features = ["std"] }
+bytes = "1"
 chrono = { workspace = true, features = ["alloc", "clock", "std"] }
 email = { git = "https://github.com/deltachat/rust-email", branch = "master" }
 encoded-words = { git = "https://github.com/async-email/encoded-words", branch = "master" }
@@ -57,7 +58,10 @@ futures = { workspace = true }
 futures-lite = { workspace = true }
 hex = "0.4.0"
 hickory-resolver = "0.24"
+http-body-util = "0.1.2"
 humansize = "2"
+hyper = "1"
+hyper-util = "0.1.7"
 image = { version = "0.25.1", default-features=false, features = ["gif", "jpeg", "ico", "png", "pnm", "webp", "bmp"] }
 iroh_old = { version = "0.4.2", default-features = false, package = "iroh"}
 iroh-net = { version = "0.22.0", default-features = false }
@@ -79,11 +83,11 @@ quick-xml = "0.36"
 quoted_printable = "0.5"
 rand = { workspace = true }
 regex = { workspace = true }
-reqwest = { version = "0.12.5", features = ["json"] }
 rusqlite = { workspace = true, features = ["sqlcipher"] }
 rust-hsluv = "0.1"
 sanitize-filename = { workspace = true }
 serde_json = { workspace = true }
+serde_urlencoded = "0.7.1"
 serde = { workspace = true, features = ["derive"] }
 sha-1 = "0.10"
 smallvec = "1.13.2"
@@ -194,8 +198,7 @@ default = ["vendored"]
 internals = []
 vendored = [
   "async-native-tls/vendored",
-  "rusqlite/bundled-sqlcipher-vendored-openssl",
-  "reqwest/native-tls-vendored"
+  "rusqlite/bundled-sqlcipher-vendored-openssl"
 ]
 
 [lints.rust]

src/net.rs

@@ -29,13 +29,6 @@ use tls::wrap_tls;
 /// This constant should be more than the largest expected RTT.
 pub(crate) const TIMEOUT: Duration = Duration::from_secs(60);
 
-/// Transaction timeout, e.g. for a GET or POST request
-/// together with all connection attempts.
-///
-/// This is the worst case time user has to wait on a very slow network
-/// after clicking a button and before getting an error message.
-pub(crate) const TRANSACTION_TIMEOUT: Duration = Duration::from_secs(300);
-
 /// TTL for caches in seconds.
 pub(crate) const CACHE_TTL: u64 = 30 * 24 * 60 * 60;