Allow pgvectorscale tasks execution in check_mode

[vitabaks]

Added the check_mode: false parameter for the pgvectorscale tasks.

This ensures that the task executes even in --check mode, preventing it from being skipped and ensuring the file is downloaded. This change addresses an error where subsequent tasks fail due to the missing downloaded archive.

Fixed:

TASK [packages : Looking up the latest version of pgvectorscale] ***************
ok: [10.0.0.5]
TASK [packages : Download pgvectorscale archive] *******************************
changed: [10.0.0.5]
TASK [packages : Extract pgvectorscale package] ********************************
fatal: [10.0.0.5]: FAILED! => {"changed": false, "msg": "Source '/tmp/pgvectorscale-0.5.1-pg16-amd64.zip' does not exist"}