chore(ingest): drop data-lake source in favor of s3 source

[hsheth2]

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 (metadata ingestion)

       8 files  ±0         8 suites  ±0   1h 16m 57s ⏱️ + 2m 59s
   645 tests  - 1     643 ✔️ +3  2 💤 ±0  0 ❌ ±0 
1 290 runs   - 2  1 286 ✔️ +2  4 💤 ±0  0 ❌ ±0 

Results for commit 23d292b. ± Comparison against base commit a449e8b.

This pull request removes 1 test.

tests.integration.data_lake.test_data_lake ‑ test_data_lake_ingest

♻️ This comment has been updated with latest results.

[github-actions]

Unit Test Results (build & test)

499 tests  ±0   493 ✔️  - 6   8m 14s ⏱️ -28s
115 suites ±0       0 💤 ±0 
115 files   ±0       6 ❌ +6 

For more details on these failures, see this check.

Results for commit 772b43c. ± Comparison against base commit e9494f5.

♻️ This comment has been updated with latest results.

[shirshanka]

LGTM