ci: try to update CI to latest packages

[rilian-la-te]

For adequately testing dynamic LLVM I need to install llvm-7 on bionic and having multiple LLVM versions on other Ubuntu versions. This PR is for make sure than all images will build.

[codecov]

Codecov Report

Merging #10609 (8295895) into master (7af0078) will decrease coverage by 1.91%.
The diff coverage is n/a.

❗ Current head 8295895 differs from pull request most recent head b2451ae. Consider uploading reports for the commit b2451ae to get more accurate results

@@            Coverage Diff             @@
##           master   #10609      +/-   ##
==========================================
- Coverage   68.82%   66.91%   -1.92%     
==========================================
  Files         406      203     -203     
  Lines       88002    44008   -43994     
  Branches    19546     9775    -9771     
==========================================
- Hits        60568    29448   -31120     
+ Misses      22864    12270   -10594     
+ Partials     4570     2290    -2280     

Impacted Files	Coverage Δ
modules/unstable_cuda.py	0.00% <0.00%> (-72.64%)	⬇️
templates/cudatemplates.py	37.50% <0.00%> (-62.50%)	⬇️
compilers/cuda.py	19.63% <0.00%> (-45.40%)	⬇️
dependencies/cuda.py	20.19% <0.00%> (-42.79%)	⬇️
compilers/mixins/clike.py	69.84% <0.00%> (-6.35%)	⬇️
scripts/depfixer.py	57.33% <0.00%> (-6.25%)	⬇️
cmake/executor.py	58.68% <0.00%> (-5.99%)	⬇️
compilers/detect.py	40.80% <0.00%> (-5.61%)	⬇️
cmake/toolchain.py	85.80% <0.00%> (-4.52%)	⬇️
dependencies/misc.py	42.96% <0.00%> (-2.23%)	⬇️
... and 224 more

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[eli-schwartz]

This conflicts, and it's not clear what's actually necessary here.