docs: updated brackets in OAuth Authentication

[davidnateberg]

Description

I changed what I believe to be incorrect brackets in the Security docs for the OAuth method

During a deployment of Apache Airflow I copied a chunk of code from the OAuth method in the Security documentation. When deploying I noticed errors related to the brackets and I believe that the bracket placement in the documentation is incorrect. I understand it's supposed to be something you copy what you need out of but if the whole chunk is copied it can be confusing why it doesnt work.

ADDITIONAL INFORMATION

• Has associated issue:
• Is CRUD MVC related.
• Is Auth, RBAC security related.
• Changes the security db schema.
• Introduces new feature
• Removes existing feature

[codecov]

Codecov Report

Merging #1798 (5ec037c) into master (f6f66fc) will increase coverage by 0.04%.
The diff coverage is n/a.

❗ Current head 5ec037c differs from pull request most recent head b597de7. Consider uploading reports for the commit b597de7 to get more accurate results

@@            Coverage Diff             @@
##           master    #1798      +/-   ##
==========================================
+ Coverage   77.08%   77.12%   +0.04%     
==========================================
  Files          56       56              
  Lines        8226     8232       +6     
==========================================
+ Hits         6341     6349       +8     
+ Misses       1885     1883       -2     

Flag	Coverage Δ
python	77.12% <ø> (+0.04%)	⬆️

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

Impacted Files	Coverage Δ
flask_appbuilder/security/decorators.py	93.33% <0.00%> (-0.57%)	⬇️
flask_appbuilder/security/manager.py	75.88% <0.00%> (+0.26%)	⬆️

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[dpgaspar]

Thank you for fixing, left a small comment

[davidnateberg]

@dpgaspar the brackets are fixed and this can be merged now

[dpgaspar]

Thank you, left a comment

[davidnateberg]

Don't want to pester @dpgaspar but this is still open, was there anything else you wanted changed? I ended up just copying your block in the end