fix(bigquery-usage): missing dependency

[anshbansal]

#4441 broke bigquery-usage in the case where bigquery plugin is not installed too. This fixes that problem.

Checklist

• The PR conforms to DataHub's Contributing Guideline (particularly Commit Message Format)
• Links to related issues (if applicable)
• Tests for the changes have been added/updated (if applicable)
• Docs related to the changes have been added/updated (if applicable). If a new feature has been added a Usage Guide has been added for the same.
• For any breaking change/potential downtime/deprecation/big changes an entry has been made in Updating DataHub

[github-actions]

Unit Test Results (build & test)

  96 files  ±0    96 suites  ±0   24m 49s ⏱️ + 1m 29s
689 tests ±0  630 ✔️ ±0  59 💤 ±0  0 ❌ ±0 

Results for commit 1870863. ± Comparison against base commit 5a59d5a.

[github-actions]

Unit Test Results (metadata ingestion)

       5 files  ±0         5 suites  ±0   1h 1m 9s ⏱️ + 3m 14s
   429 tests ±0     429 ✔️ ±  0    0 💤 ±  0  0 ❌ ±0 
2 070 runs  ±0  2 024 ✔️ +20  46 💤  - 20  0 ❌ ±0 

Results for commit 1870863. ± Comparison against base commit 5a59d5a.