Dockerfile: bump xx to v1.5.0

[thaJeztah]

full diff: tonistiigi/xx@v1.4.0...v1.5.0

- A picture of a cute animal (not mandatory but encouraged)

[thaJeztah]

@crazy-max should this one also be updated to a newer version? https://hub.docker.com/r/crazymax/osxcross/tags

[crazy-max]

Don't think we need to bump to 14.5 yet but 11.3-r8 would be good.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 53.42%. Comparing base (58c87f0) to head (2d241f3).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #339   +/-   ##
=======================================
  Coverage   53.42%   53.42%           
=======================================
  Files           9        9           
  Lines         672      672           
=======================================
  Hits          359      359           
  Misses        268      268           
  Partials       45       45           

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[thaJeztah]

This one's still failing unfortunately;

 > [linux/amd64->arm/v6 base 1/1] RUN xx-apt-get install -y binutils gcc libc6-dev libgcc-10-dev libsecret-1-dev pkg-config:
33.81 distribution that some required packages have not yet been created
33.81 or been moved out of Incoming.
33.83 The following information may help to resolve the situation:
33.83 
33.83 The following packages have unmet dependencies:
34.20  libc6-dev:armel : Depends: linux-libc-dev:armel but it is not going to be installed
34.21  libnsl-dev:armel : Depends: libnsl2:armel (= 1.3.0-2) but it is not installable
34.22  libsepol1-dev:armel : Depends: libsepol1:armel (= 3.1-1) but it is not going to be installed
34.23  libtirpc-dev:armel : Depends: libtirpc3:armel (= 1.3.1-1+deb11u1) but it is not installable
34.31 E: Unable to correct problems, you have held broken packages.

[thaJeztah]

ah! arm32 packages (armel) 🤔