all: upgrade golangci-lint and formatters

[mmcloughlin]

No description provided.

[codecov-commenter]

Codecov Report

Merging #240 (ee2864c) into master (5539305) will decrease coverage by 0.03%.
The diff coverage is 17.64%.

@@            Coverage Diff             @@
##           master     #240      +/-   ##
==========================================
- Coverage   76.16%   76.12%   -0.04%     
==========================================
  Files          65       65              
  Lines       20526    20538      +12     
==========================================
+ Hits        15633    15634       +1     
- Misses       4814     4825      +11     
  Partials       79       79              

Flag	Coverage Δ
integration	11.84% <0.00%> (-0.01%)	⬇️
stress	?
unittests	73.22% <17.64%> (-0.04%)	⬇️

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Impacted Files	Coverage Δ
build/global.go	79.31% <ø> (ø)
build/pseudo.go	75.00% <ø> (ø)
gotypes/components.go	92.37% <ø> (ø)
internal/gen/api.go	0.00% <0.00%> (ø)
internal/gen/ctorstest.go	0.00% <ø> (ø)
internal/gen/optab.go	0.00% <0.00%> (ø)
internal/load/load.go	95.51% <ø> (ø)
ir/ir.go	90.06% <ø> (ø)
reg/x86.go	100.00% <ø> (ø)
x86/zoptab.go	92.42% <ø> (ø)
... and 2 more

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