Bump MSRV to 1.61

This prevents memchr compile errors for now.

Signed-off-by: John Nunley <dev@notgull.net>

.github/workflows/ci.yml

@@ -53,7 +53,7 @@ jobs:
       matrix:
         # When updating this, the reminder to update the minimum supported
         # Rust version in Cargo.toml.
-        rust: ['1.48']
+        rust: ['1.61']
     steps:
       - uses: actions/checkout@v3
       - name: Install Rust

Cargo.toml

@@ -9,7 +9,7 @@ authors = [
   "Contributors to futures-rs",
 ]
 edition = "2018"
-rust-version = "1.48"
+rust-version = "1.61"
 description = "Futures, streams, and async I/O combinators"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/smol-rs/futures-lite"