Fix access log

[lunny]

Fix #14121, #14478.

The AccessLog middleware has to be after Contexter or APIContexter so that we can get LoginUserName if possible.
And also there is a BREAK change that it removed internal API access log.

[6543]

@lunny can you use middleware instead of middlewares?

[lunny]

@lunny can you use middleware instead of middlewares?

see #14475 (comment)

[codecov-io]

Codecov Report

Merging #14475 (7429a01) into master (b2c20b6) will decrease coverage by 0.00%.
The diff coverage is 10.71%.

@@            Coverage Diff             @@
##           master   #14475      +/-   ##
==========================================
- Coverage   42.11%   42.10%   -0.01%     
==========================================
  Files         758      760       +2     
  Lines       81085    81103      +18     
==========================================
+ Hits        34148    34149       +1     
- Misses      41360    41375      +15     
- Partials     5577     5579       +2     

Impacted Files	Coverage Δ
modules/auth/sso/sso.go	26.92% <ø> (-5.22%)	⬇️
modules/context/access_log.go	0.00% <0.00%> (ø)
modules/context/context.go	59.13% <0.00%> (-2.51%)	⬇️
routers/api/v1/api.go	78.63% <0.00%> (-0.22%)	⬇️
routers/routes/base.go	24.03% <ø> (+5.38%)	⬆️
routers/routes/web.go	91.79% <0.00%> (ø)
modules/context/response.go	80.00% <25.00%> (-4.38%)	⬇️
modules/auth/sso/oauth2.go	47.61% <100.00%> (ø)
modules/middlewares/request.go	100.00% <100.00%> (ø)
modules/process/manager.go	72.50% <0.00%> (-2.50%)	⬇️
... and 3 more

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[6543]

☝️ since it's breaking ...