Migrate subscription to graphql-ws

[hyochan]

Specify project

Both

Description

graphql-subscription-ws has been deprecated and should be migrated to graphql-ws.

Related Issues

N/A

Tests

To not fail

Checklist

Before you create this PR confirms that it meets all requirements listed below by checking the relevant checkboxes ([x]). This will ensure a smooth and quick review process.

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I signed the [CLA].
• Run yarn lint && yarn tsc
• Run yarn test or yarn test -u if you need to update snapshot.
• I am willing to follow-up on review comments in a timely manner.

[codecov]

Codecov Report

Merging #557 (3429718) into main (b6c829c) will decrease coverage by 0.72%.
The diff coverage is 71.42%.

@@            Coverage Diff             @@
##             main     #557      +/-   ##
==========================================
- Coverage   72.30%   71.58%   -0.73%     
==========================================
  Files          65       65              
  Lines        1307     1309       +2     
  Branches      160      161       +1     
==========================================
- Hits          945      937       -8     
- Misses        335      346      +11     
+ Partials       27       26       -1     

Flag	Coverage Δ
unittests	71.58% <71.42%> (-0.73%)	⬇️

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

Impacted Files	Coverage Δ
server/src/context.ts	70.14% <66.66%> (-6.78%)	⬇️
server/src/server.ts	89.47% <80.00%> (+2.63%)	⬆️
server/src/resolvers/Upload/mutation.ts	40.00% <0.00%> (-60.00%)	⬇️

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