fix: reposervice fix cwd

[harishv7]

Problem

By right we are supposed to use root = false, to quite the doc

.cwd({ path, root = false }) Sets the working directory for all future commands either in the current chain of commands (where root is omitted or set to false) or in the main instance (where root is true).

Ran this agains this against ~30 sites at one go, no errors like the ones we previously observed

Tests

• e2e tests for GGs
• For a GGs site in staging, able to CRUD on pages + CRUD on images

[kishore03109]

our git file system service also need changes

[kishore03109]

lets branch off from last week's release + create 2 prs (one for dev, one to master) to do a hotfix today

also have we load tested this against multiple chained steps? (or you think no need)