fix(examples): Cleanup granularity_sqla column

[john-bodley]

SUMMARY

Somewhat similar to #23260, the granularity_sqla field should reference the year column rather than Year.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

TESTING INSTRUCTIONS

CI.

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #23322 (3181fa3) into master (57db8f9) will increase coverage by 1.65%.
The diff coverage is n/a.

❗ Current head 3181fa3 differs from pull request most recent head f2568d5. Consider uploading reports for the commit f2568d5 to get more accurate results

@@            Coverage Diff             @@
##           master   #23322      +/-   ##
==========================================
+ Coverage   65.86%   67.52%   +1.65%     
==========================================
  Files        1909     1909              
  Lines       73491    73491              
  Branches     7988     7988              
==========================================
+ Hits        48404    49622    +1218     
+ Misses      23037    21819    -1218     
  Partials     2050     2050              

Flag	Coverage Δ
hive	52.77% <ø> (ø)
mysql	78.44% <ø> (ø)
postgres	78.50% <ø> (ø)
presto	52.70% <ø> (?)
python	82.25% <ø> (+3.43%)	⬆️
sqlite	?
unit	52.49% <ø> (?)

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see 89 files with indirect coverage changes

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