Fix build for BSDs (nushell#11372)

# Description
This PR fixes build for BSD variants (including FreeBSD and NetBSD). 

Currently, `procfs` only support linux, android and l4re, and
0cba269 only adds support for NetBSD,
this PR should work on all BSD variants.


https://github.com/eminence/procfs/blob/b153b782a5957aa619ed744d0ac8bbe4734601ed/procfs/build.rs#L4-L8

Fixes nushell#11373 

# User-Facing Changes
* before

```console
nibon7@fbsd /d/s/nushell ((70f7db1))> cargo build
   Compiling tempfile v3.8.1
   Compiling procfs v0.16.0
   Compiling toml_edit v0.21.0
   Compiling native-tls v0.2.11
error: failed to run custom build command for `procfs v0.16.0`

Caused by:
  process didn't exit successfully: `/data/source/nushell/target/debug/build/procfs-d59599f40f32f0d5/build-script-build` (exit status: 1)
  --- stderr
  Building procfs on an for a unsupported platform. Currently only linux and android are supported
  (Your current target_os is freebsd)
warning: build failed, waiting for other jobs to finish...
```

* after

```console
nushell on  bsd [✘!?] is 📦 v0.88.2 via 🦀 v1.74.1
❯ version
╭────────────────────┬───────────────────────────────────────────╮
│ version            │ 0.88.2                                    │
│ branch             │ bsd                                       │
│ commit_hash        │ 151edef  │
│ build_os           │ freebsd-x86_64                            │
│ build_target       │ x86_64-unknown-freebsd                    │
│ rust_version       │ rustc 1.74.1 (a28077b28 2023-12-04)       │
│ rust_channel       │ stable-x86_64-unknown-freebsd             │
│ cargo_version      │ cargo 1.74.1 (ecb9851af 2023-10-18)       │
│ build_time         │ 2023-12-19 10:12:15 +00:00                │
│ build_rust_channel │ debug                                     │
│ allocator          │ mimalloc                                  │
│ features           │ default, extra, sqlite, trash, which, zip │
│ installed_plugins  │                                           │
╰────────────────────┴───────────────────────────────────────────╯
nushell on  bsd [✘!?] is 📦 v0.88.2 via 🦀 v1.74.1
❯ cargo test --workspace commands::ulimit e>> /dev/null | rg ulimit
test commands::ulimit::limit_set_filesize2 ... ok
test commands::ulimit::limit_set_filesize1 ... ok
test commands::ulimit::limit_set_hard1 ... ok
test commands::ulimit::limit_set_hard2 ... ok
test commands::ulimit::limit_set_invalid1 ... ok
test commands::ulimit::limit_set_invalid3 ... ok
test commands::ulimit::limit_set_invalid4 ... ok
test commands::ulimit::limit_set_invalid5 ... ok
test commands::ulimit::limit_set_soft2 ... ok
test commands::ulimit::limit_set_soft1 ... ok
nushell on  bsd [✘!?] is 📦 v0.88.2 via 🦀 v1.74.1
```


# Tests + Formatting
<!--
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Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
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- `cargo test --workspace` to check that all tests pass (on Windows make
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crates/nu-std"` to run the tests for the standard library

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# After Submitting
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crates/nu-command/Cargo.toml

@@ -106,7 +106,7 @@ libc = "0.2"
 umask = "2.1"
 nix = { version = "0.27", default-features = false, features = ["user", "resource"] }
 
-[target.'cfg(all(unix, not(target_os = "macos"), not(target_os = "android"), not(target_os = "ios"), not(target_os = "netbsd")))'.dependencies]
+[target.'cfg(any(target_os = "linux", target_os = "android"))'.dependencies]
 procfs = "0.16.0"
 
 [target.'cfg(not(any(target_os = "android", target_os = "ios")))'.dependencies.trash]

crates/nu-command/src/platform/ulimit.rs

@@ -233,7 +233,7 @@ static RESOURCE_ARRAY: Lazy<Vec<ResourceInfo>> = Lazy::new(|| {
             "Maximum number of pseudo-terminals",
             'P',
             1,
-            Resource::RLIMIT_NPTY,
+            Resource::RLIMIT_NPTS,
         ),
     ];
 

crates/nu-command/src/system/ps.rs

@@ -5,8 +5,6 @@ use itertools::Itertools;
     not(target_os = "macos"),
     not(target_os = "windows"),
     not(target_os = "android"),
-    not(target_os = "ios"),
-    not(target_os = "netbsd")
 ))]
 use nu_protocol::Span;
 use nu_protocol::{
@@ -20,8 +18,6 @@ use nu_protocol::{
     not(target_os = "macos"),
     not(target_os = "windows"),
     not(target_os = "android"),
-    not(target_os = "ios"),
-    not(target_os = "netbsd")
 ))]
 use procfs::WithCurrentSystemInfo;
 
@@ -125,8 +121,6 @@ fn run_ps(engine_state: &EngineState, call: &Call) -> Result<PipelineData, Shell
                 not(target_os = "macos"),
                 not(target_os = "windows"),
                 not(target_os = "android"),
-                not(target_os = "ios"),
-                not(target_os = "netbsd")
             ))]
             {
                 let proc_stat = proc

crates/nu-command/tests/commands/ulimit.rs

@@ -93,6 +93,7 @@ fn limit_set_invalid1() {
     });
 }
 
+#[cfg(any(target_os = "linux", target_os = "macos"))]
 #[test]
 fn limit_set_invalid2() {
     Playground::setup("limit_set_invalid2", |dirs, _sandbox| {