[DOCS] ADR around not using meta fields

[tyler-hoffman]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.47%. Comparing base (ca78476) to head (d0c3f7f).
Report is 1 commits behind head on develop.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #10672   +/-   ##
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  Coverage    80.47%   80.47%           
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  Files          462      462           
  Lines        40111    40111           
========================================
  Hits         32279    32279           
  Misses        7832     7832           

Flag	Coverage Δ
3.10	68.16% <ø> (-0.02%)	⬇️
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	68.17% <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 postgresql	?
3.11 spark_connect	?
3.11 trino	?
3.12	68.17% <ø> (ø)
3.12 athena or openpyxl or pyarrow or project or sqlite or aws_creds	55.49% <ø> (ø)
3.12 aws_deps	46.14% <ø> (ø)
3.12 big	54.74% <ø> (ø)
3.12 databricks	48.08% <ø> (ø)
3.12 filesystem	61.71% <ø> (ø)
3.12 mssql	51.49% <ø> (ø)
3.12 mysql	51.55% <ø> (ø)
3.12 postgresql	54.62% <ø> (ø)
3.12 snowflake	48.85% <ø> (ø)
3.12 spark	58.07% <ø> (ø)
3.12 spark_connect	46.44% <ø> (ø)
3.12 trino	52.67% <ø> (ø)
3.9	68.19% <ø> (+0.17%)	⬆️
3.9 athena or openpyxl or pyarrow or project or sqlite or aws_creds	55.49% <ø> (-0.07%)	⬇️
3.9 aws_deps	46.16% <ø> (-0.01%)	⬇️
3.9 big	54.76% <ø> (-0.01%)	⬇️
3.9 clickhouse	43.03% <ø> (+0.01%)	⬆️
3.9 databricks	48.10% <ø> (-0.02%)	⬇️
3.9 filesystem	61.73% <ø> (-0.05%)	⬇️
3.9 mssql	51.47% <ø> (-0.05%)	⬇️
3.9 mysql	51.54% <ø> (-0.05%)	⬇️
3.9 postgresql	54.60% <ø> (-0.07%)	⬇️
3.9 snowflake	48.87% <ø> (-0.03%)	⬇️
3.9 spark	58.04% <ø> (-0.09%)	⬇️
3.9 spark_connect	46.45% <ø> (-0.01%)	⬇️
3.9 trino	52.66% <ø> (-0.05%)	⬇️
cloud	0.00% <ø> (ø)
docs-basic	53.40% <ø> (+0.11%)	⬆️
docs-creds-needed	52.97% <ø> (+0.11%)	⬆️
docs-spark	52.46% <ø> (+0.12%)	⬆️

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[billdirks]

Thank you!