fix(env-check): remove monitor initial pending to fix disk mismatch problem

[COLDTURNIP]

EDIT: change to draft since the initial waiting is expected for while disk mismatch really happens.

Which issue(s) this PR fixes:

Issue longhorn/longhorn#10098

What this PR does / why we need it:

Trigger the initial disk status collecting right after the disk monitor get created, to eliminate disk mismatching errors, which blocks the rest node sync logic.

Special notes for your reviewer:

Additional documentation or context