fix: update rpmpack and change default compressor to gzip:-1 (a default level) instead of gzip:9

[Felixoid]

The default compression level for rpm is 9. https://github.com/google/rpmpack/blob/master/rpm.go#L165

Because of it, rpm packaging is significantly slower than deb, almost 5 times worse.

Here I bump the dependencies, add tests and change default level to -1

[codecov]

Codecov Report

Merging #458 (0fc8f23) into main (6aaec21) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #458      +/-   ##
==========================================
+ Coverage   65.93%   65.98%   +0.05%     
==========================================
  Files          16       16              
  Lines        1905     1908       +3     
==========================================
+ Hits         1256     1259       +3     
  Misses        510      510              
  Partials      139      139              

Impacted Files	Coverage Δ
nfpm.go	86.43% <ø> (ø)
rpm/rpm.go	69.40% <100.00%> (+0.34%)	⬆️

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[caarlos0]

I think we can leave the default as 9, and users who feel it is too slow can change it. WDYT?

[Felixoid]

The difference between 5 and 9 levels in speed is huge, 1.5 vs 7.5 minutes, and only 5% in space, difficult to recall exact numbers, something like 1015MB vs 970MB. I'd say, 9 is rather worthless.

9 is defined by rpmpack, and for deb and apk -1 is used. So now all packages are compressing with the same settings.

[caarlos0]

9 is rather worthless.

well, that depends entirely in the use case of the package, some people may need those 5% shrink for some reason.

9 is defined by rpmpack, and for deb and apk -1 is used.

then yes, this makes sense.

[caarlos0]

thanks!

[Felixoid]

Thank you for reviewing!

BTW, the bot just added 2.12.0 milestone. Looks like something wrong since 2.13 is released.

[caarlos0]

thanks, fixed it @Felixoid