Update command-group from 1.0.8 to 2.0.1

With #13552 the depencency of on the command-group crate was introduced, which also
introduced a dependency on nix. That version of nix does not build on Haiku. This
change introduces a newer version of command-group, which also updates nix from
0.22.3 to 0.26.1, which is compatible on Haiku.

Cargo.lock

@@ -229,9 +229,9 @@ dependencies = [
 
 [[package]]
 name = "command-group"
-version = "1.0.8"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7a8a86f409b4a59df3a3e4bee2de0b83f1755fdd2a25e3a9684c396fc4bed2c"
+checksum = "026c3922235f9f7d78f21251a026f3acdeb7cce3deba107fe09a4bfa63d850a2"
 dependencies = [
  "nix",
  "winapi",
@@ -870,9 +870,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.135"
+version = "0.2.139"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c"
+checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
 
 [[package]]
 name = "libloading"
@@ -1029,15 +1029,14 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.22.3"
+version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4916f159ed8e5de0082076562152a76b7a1f64a01fd9d1e0fea002c37624faf"
+checksum = "46a58d1d356c6597d08cde02c2f09d785b09e28711837b1ed667dc652c08a694"
 dependencies = [
  "bitflags",
- "cc",
  "cfg-if",
  "libc",
- "memoffset",
+ "static_assertions",
 ]
 
 [[package]]
@@ -1642,6 +1641,12 @@ dependencies = [
  "xshell",
 ]
 
+[[package]]
+name = "static_assertions"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+
 [[package]]
 name = "stdx"
 version = "0.0.0"

crates/flycheck/Cargo.toml

@@ -17,7 +17,7 @@ rustc-hash = "1.1.0"
 serde = { version = "1.0.137", features = ["derive"] }
 serde_json = "1.0.86"
 jod-thread = "0.1.2"
-command-group = "1.0.8"
+command-group = "2.0.1"
 
 toolchain = { path = "../toolchain", version = "0.0.0" }
 stdx = { path = "../stdx", version = "0.0.0" }