Update actix-web, tokio and sqlx

[realaravinth]

• Changes from actix-web, tokio and sqlx
• update source code handler to point to this repository
• moved render_404 from error_handlers.rs to errors.rs

[codecov-commenter]

Codecov Report

Merging #37 (1036ac7) into master (d4226e4) will increase coverage by 0.00%. The diff coverage is 27.27%.

@@           Coverage Diff           @@
##           master      #37   +/-   ##
=======================================
  Coverage   65.00%   65.00%           
=======================================
  Files          28       27    -1     
  Lines         620      623    +3     
=======================================
+ Hits          403      405    +2     
- Misses        217      218    +1     

Impacted Files	Coverage Δ
src/apps/files/list.rs	3.03% <0.00%> (-0.10%)	:arrow_down:
src/apps/files/upload.rs	5.55% <ø> (ø)
src/main.rs	4.34% <0.00%> (-0.31%)	:arrow_down:
src/tests/helpers.rs	100.00% <ø> (ø)
src/errors.rs	50.00% <37.50%> (-5.18%)	:arrow_down:
src/middleware/auth.rs	61.53% <40.00%> (+11.53%)	:arrow_up:
src/api/v1/auth.rs	83.11% <100.00%> (+0.22%)	:arrow_up:

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[realaravinth]

actix-governor is currently disabled, I have left a TODO in src/api/v1/mod.rs for including it. I don't know how it works. If I understand it correctly, a new middleware instance is created for each service and each service gets its own counter. I hope I am wrong because otherwise, it would be ineffective.

Please send a PR for enabling actix-gernor

[realaravinth]

and anctix-web-4-beta.* is reasonably stable. v3 uses tokio v2 which is painfully old.

[AaronErhardt]

I'll try porting actix-governor to the latest acitx-web beta. Actually there's only one counter (that's stored in the config) despite the API indicating the opposite.