feat(cli): add feature to disable downloads (#3465)

* feat(cli): add feature to disable downloads

---------

Co-authored-by: Jonathan Kelley <jkelleyrtp@gmail.com>

Cargo.lock

@@ -1613,7 +1613,7 @@ dependencies = [
  "rustc-hash 1.1.0",
  "shlex",
  "syn 2.0.90",
- "which",
+ "which 4.4.2",
 ]
 
 [[package]]
@@ -3546,6 +3546,7 @@ dependencies = [
  "uuid",
  "walkdir",
  "wasm-opt",
+ "which 7.0.1",
 ]
 
 [[package]]
@@ -4628,6 +4629,12 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "env_home"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7f84e12ccf0a7ddc17a6c41c93326024c42920d7ee630d04950e6926645c0fe"
+
 [[package]]
 name = "env_logger"
 version = "0.10.2"
@@ -14895,6 +14902,18 @@ dependencies = [
  "rustix",
 ]
 
+[[package]]
+name = "which"
+version = "7.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb4a9e33648339dc1642b0e36e21b3385e6148e289226f657c809dee59df5028"
+dependencies = [
+ "either",
+ "env_home",
+ "rustix",
+ "winsafe",
+]
+
 [[package]]
 name = "whoami"
 version = "1.5.2"
@@ -15382,6 +15401,12 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
+[[package]]
+name = "winsafe"
+version = "0.0.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d135d17ab770252ad95e9a872d365cf3090e3be864a34ab46f48555993efc904"
+
 [[package]]
 name = "write16"
 version = "1.0.0"