fix: pin wallet-gateway-remote's *-store-sql deps to exact versions on publish (#2314)

@canton-network/core-wallet-store-sql and @canton-network/core-signing-store-sql
were both declared as workspace:^, which pnpm rewrites to a caret range on
publish. That lets npm resolve a newer store-sql at install time than the
gateway was built against, so an old gateway can pull in and run a future
DB migration it doesn't expect (e.g. running wallet-gateway-remote@1.5.0
executes a migration that adds the `origin` column to the sessions table,
breaking logins).

workspace:* is rewritten to the exact current version instead, so a given
gateway release is always paired with the store-sql version it shipped with.

Fixes #2281

Signed-off-by: ayushsingh82 <ayushsinghmi711@gmail.com>