deps: allow socket2 0.6 (#213)

Author: tottoto

.github/workflows/CI.yml

@@ -65,14 +65,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
-      - name: Pin some dependencies for MSRV
-        run: |
-          cargo update
-          cargo update --package tokio --precise 1.38.1
-          cargo update --package tokio-util --precise 0.7.11
-          cargo update --package hashbrown --precise 0.15.0
-          cargo update --package once_cell --precise 1.20.3
-          cargo update --package tracing-core --precise 0.1.33
+      - name: Resolve MSRV aware dependencies
+        run: cargo update
+        env:
+          CARGO_RESOLVER_INCOMPATIBLE_RUST_VERSIONS: fallback
       - name: Install Rust (${{ matrix.rust }})
         uses: dtolnay/rust-toolchain@master
         with:

Cargo.toml

@@ -30,7 +30,7 @@ ipnet = { version = "2.9", optional = true }
 libc = { version = "0.2", optional = true }
 percent-encoding = { version = "2.3", optional = true }
 pin-project-lite = "0.2.4"
-socket2 = { version = "0.5.9", optional = true, features = ["all"] }
+socket2 = { version = ">=0.5.9, <0.7", optional = true, features = ["all"] }
 tracing = { version = "0.1", default-features = false, features = ["std"], optional = true }
 tokio = { version = "1", optional = true, default-features = false  }
 tower-service = { version = "0.3", optional = true }