fix(saved_queries): wrong enum for object_type of saved_query

[akzarma]

SUMMARY

Fixes #23610
There is no "saved_query" enum value of object_type for saved queries as such. it should be "query" instead as it can be seen in ObjectTypes class.

BEFORE SCREENSHOTS

AFTER

• Saved queries list loads fine

TESTING INSTRUCTIONS

1. Setup Postgres as backend db (as the default sqlite db doesn't really strictly checks the enum type of object_type)
2. Go to "Saved queries" page
3. The list should load fine.

ADDITIONAL INFORMATION

• Has associated issue: Invalid assignment of ObjectType in saved_query list API #23610
• Required feature flags: TAGGING_SYSTEM
• 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 #23611 (4ed9eec) into master (c5eecc7) will not change coverage.
The diff coverage is n/a.

❗ Current head 4ed9eec differs from pull request most recent head 45698a5. Consider uploading reports for the commit 45698a5 to get more accurate results

@@           Coverage Diff           @@
##           master   #23611   +/-   ##
=======================================
  Coverage   67.72%   67.72%           
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  Files        1916     1916           
  Lines       74051    74051           
  Branches     8040     8040           
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  Hits        50153    50153           
  Misses      21850    21850           
  Partials     2048     2048           

Flag	Coverage Δ
hive	52.75% <ø> (ø)
mysql	78.49% <ø> (ø)
postgres	78.57% <ø> (ø)
presto	52.68% <ø> (ø)
python	82.41% <ø> (ø)
sqlite	77.07% <ø> (ø)
unit	52.64% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...rc/components/Datasource/ChangeDatasourceModal.tsx	78.68% <ø> (ø)
...ponents/ReportModal/HeaderReportDropdown/index.tsx	67.50% <ø> (ø)
...src/dashboard/components/PropertiesModal/index.tsx	64.03% <ø> (ø)
...d/src/explore/components/PropertiesModal/index.tsx	50.53% <ø> (ø)
...erset-frontend/src/pages/AlertReportList/index.tsx	59.64% <ø> (ø)
superset-frontend/src/pages/AllEntities/index.tsx	0.00% <ø> (ø)
...t-frontend/src/pages/AnnotationLayerList/index.tsx	68.05% <ø> (ø)
...perset-frontend/src/pages/AnnotationList/index.tsx	69.35% <ø> (ø)
superset-frontend/src/pages/ChartList/index.tsx	55.31% <ø> (ø)
...erset-frontend/src/pages/CssTemplateList/index.tsx	66.66% <ø> (ø)
... and 14 more

... and 55 files with indirect coverage changes

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