build(deps): Bump jinja2 to 2.11.3

[robdiciuccio]

SUMMARY

Bump jinja2 to latest version due to recent patches.

TEST PLAN

Test Jinja templating functionality in queries.

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

[codecov-io]

Codecov Report

Merging #12901 (89c8306) into master (5a79a7d) will decrease coverage by 7.91%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #12901      +/-   ##
==========================================
- Coverage   66.98%   59.06%   -7.92%     
==========================================
  Files        1026      967      -59     
  Lines       50330    47437    -2893     
  Branches     5189     4445     -744     
==========================================
- Hits        33713    28021    -5692     
- Misses      16483    19416    +2933     
+ Partials      134        0     -134     

Flag	Coverage Δ
cypress	50.81% <ø> (ø)
javascript	?
python	63.76% <ø> (-0.35%)	⬇️

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

Impacted Files	Coverage Δ
...uperset-frontend/src/dashboard/util/dnd-reorder.js	0.00% <0.00%> (-100.00%)	⬇️
...rset-frontend/src/dashboard/util/getEmptyLayout.js	0.00% <0.00%> (-100.00%)	⬇️
...dashboard/components/resizable/ResizableHandle.jsx	0.00% <0.00%> (-100.00%)	⬇️
...dashboard/components/nativeFilters/ScopingTree.tsx	6.25% <0.00%> (-93.75%)	⬇️
.../src/dashboard/util/getFilterScopeFromNodesTree.js	0.00% <0.00%> (-93.48%)	⬇️
...set-frontend/src/views/CRUD/alert/ExecutionLog.tsx	11.76% <0.00%> (-88.24%)	⬇️
...src/dashboard/components/gridComponents/Header.jsx	10.52% <0.00%> (-86.85%)	⬇️
superset-frontend/src/components/IconTooltip.tsx	13.33% <0.00%> (-86.67%)	⬇️
...rc/dashboard/components/gridComponents/Divider.jsx	13.33% <0.00%> (-86.67%)	⬇️
...perset-frontend/src/views/CRUD/welcome/Welcome.tsx	2.94% <0.00%> (-85.95%)	⬇️
... and 407 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5a79a7d...89c8306. Read the comment docs.

[villebro]

Changelog for 2.11.3: https://jinja.palletsprojects.com/en/2.11.x/changelog/#version-2-11-3