Use with-env to avoid calling external command on invalid command (#8209)

# Description

My terminal emulator happens to be called `st`
(https://st.suckless.org/) which breaks these tests for me

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guide](../CONTRIBUTING.md) and talk to the core team before making major
changes.)_

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# User-Facing Changes

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# Tests + Formatting

Don't forget to add tests that cover your changes.

Make sure you've run and fixed any issues with these commands:

- `cargo fmt --all -- --check` to check standard code formatting (`cargo
fmt --all` applies these changes)
- `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used -A
clippy::needless_collect` to check that you're using the standard code
style
- `cargo test --workspace` to check that all tests pass

# After Submitting

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documentation](https://github.com/nushell/nushell.github.io) after the
PR is merged, if necessary. This will help us keep the docs up to date.

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

@@ -58,10 +58,13 @@ fn checks_all_columns_of_a_table_is_true() {
 
 #[test]
 fn checks_if_all_returns_error_with_invalid_command() {
+    // Using `with-env` to remove `st` possibly being an external program
     let actual = nu!(
         cwd: ".", pipeline(
         r#"
-            [red orange yellow green blue purple] | all {|it| ($it | st length) > 4 }
+            with-env {PATH: ""} {
+                [red orange yellow green blue purple] | all {|it| ($it | st length) > 4 }
+            }
         "#
     ));
 

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

@@ -34,10 +34,13 @@ fn checks_any_column_of_a_table_is_true() {
 
 #[test]
 fn checks_if_any_returns_error_with_invalid_command() {
+    // Using `with-env` to remove `st` possibly being an external program
     let actual = nu!(
         cwd: ".", pipeline(
         r#"
-            [red orange yellow green blue purple] | any {|it| ($it | st length) > 4 }
+            with-env {PATH: ""} {
+                [red orange yellow green blue purple] | any {|it| ($it | st length) > 4 }
+            }
         "#
     ));