[DOCS] Cloud Data Source support

[klavavej]

This issueless PR aims to clarify GX Cloud Data Source support as discussed in this slack thread

• Description of PR changes above includes a link to an existing GitHub issue
• PR title is prefixed with one of: [BUGFIX], [FEATURE], [DOCS], [MAINTENANCE], [CONTRIB], [MINORBUMP]
• Code is linted - run invoke lint (uses ruff format + ruff check)
• Appropriate tests and docs have been updated

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.95%. Comparing base (7c343bb) to head (7edb673).

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #11050   +/-   ##
========================================
  Coverage    80.95%   80.95%           
========================================
  Files          485      485           
  Lines        41005    41005           
========================================
  Hits         33195    33195           
  Misses        7810     7810           

Flag	Coverage Δ
3.10	70.40% <ø> (ø)
3.10 athena or openpyxl or pyarrow or project or sqlite or aws_creds	?
3.10 aws_deps	?
3.10 big	?
3.10 clickhouse	?
3.10 filesystem	?
3.10 mssql	?
3.10 mysql	?
3.10 postgresql	?
3.10 spark_connect	?
3.10 trino	?
3.11	70.40% <ø> (ø)
3.11 athena or openpyxl or pyarrow or project or sqlite or aws_creds	?
3.11 aws_deps	?
3.11 big	?
3.11 clickhouse	?
3.11 filesystem	?
3.11 mssql	?
3.11 mysql	?
3.11 spark_connect	?
3.11 trino	?
3.12	70.40% <ø> (ø)
3.12 athena or openpyxl or pyarrow or project or sqlite or aws_creds	56.82% <ø> (ø)
3.12 aws_deps	46.60% <ø> (ø)
3.12 big	55.02% <ø> (ø)
3.12 bigquery	49.19% <ø> (ø)
3.12 databricks	50.84% <ø> (ø)
3.12 filesystem	63.16% <ø> (ø)
3.12 mssql	51.89% <ø> (ø)
3.12 mysql	52.14% <ø> (ø)
3.12 postgresql	54.81% <ø> (ø)
3.12 snowflake	51.61% <ø> (ø)
3.12 spark	58.09% <ø> (ø)
3.12 spark_connect	46.93% <ø> (ø)
3.12 trino	52.57% <ø> (ø)
3.9	70.42% <ø> (ø)
3.9 athena or openpyxl or pyarrow or project or sqlite or aws_creds	56.82% <ø> (ø)
3.9 aws_deps	46.62% <ø> (ø)
3.9 big	55.04% <ø> (ø)
3.9 bigquery	49.19% <ø> (ø)
3.9 clickhouse	43.53% <ø> (ø)
3.9 databricks	50.84% <ø> (+<0.01%)	⬆️
3.9 filesystem	63.16% <ø> (ø)
3.9 mssql	51.87% <ø> (ø)
3.9 mysql	52.13% <ø> (ø)
3.9 postgresql	54.80% <ø> (ø)
3.9 snowflake	51.61% <ø> (ø)
3.9 spark	58.05% <ø> (ø)
3.9 spark_connect	46.94% <ø> (ø)
3.9 trino	52.56% <ø> (ø)
cloud	0.00% <ø> (ø)
docs-basic	54.11% <ø> (ø)
docs-creds-needed	52.99% <ø> (ø)
docs-spark	52.53% <ø> (ø)

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