Fix empty Storage section by properly aliasing command types

v0.1.220 broke disk collector by changing the import from
std::process::Command to tokio::process::Command, but lines 193 and
767 explicitly used std::process::Command::new() which silently failed.

Solution: Import both as aliases (TokioCommand/StdCommand) and use
appropriate type for each operation - async commands use TokioCommand
with run_command_with_timeout, sync commands use StdCommand with
system timeout wrapper.

Fixes: Empty Storage section after v0.1.220 deployment
Bump version to v0.1.221

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.219"
+version = "0.1.220"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.219"
+version = "0.1.220"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -324,7 +324,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.219"
+version = "0.1.220"
 dependencies = [
  "chrono",
  "serde",