debugger: Handle the envFile setting for Go (#33666)

Fixes #32984

Release Notes:

- The Go debugger now respects the `envFile` setting.

Cargo.lock

@@ -4147,6 +4147,8 @@ dependencies = [
  "async-trait",
  "collections",
  "dap",
+ "dotenvy",
+ "fs",
  "futures 0.3.31",
  "gpui",
  "json_dotpath",
@@ -4675,12 +4677,6 @@ dependencies = [
  "syn 2.0.101",
 ]
 
-[[package]]
-name = "dotenv"
-version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
-
 [[package]]
 name = "dotenvy"
 version = "0.15.7"
@@ -5114,7 +5110,7 @@ dependencies = [
  "collections",
  "debug_adapter_extension",
  "dirs 4.0.0",
- "dotenv",
+ "dotenvy",
  "env_logger 0.11.8",
  "extension",
  "fs",