Merge branch 'master' into master+ZODB4-wc2

* master: (56 commits)
  golang: v↑ go1.17  (1.17.3 -> 1.17.6)
  golang: v↑ go1.16  (1.16.10 -> 1.16.13)
  stack/erp5: Shorten haproxy socket path
  software/erp5/test: fix flaky test_activity_processing
  component/apache: version up 2.4.52, including security fixes.
  component/trafficserver: version up 9.1.1.
  stack/slapos: version up lxml 4.6.5, including security fixes.
  ninja: simplify configure step
  consul, packer, phantomjs: enable shared
  version up: zc.buildout 2.7.1+slapos015, slapos.recipe.build 0.53, slapos.recipe.cmmi 0.19
  version up: CMake 3.22.1
  component/userhosts: use github.com/figiel/hosts for compatibility with recent libc
  software/erp5/upgrade_test: backport new fixes in old software
  software/erp5/upgrade_test: skip software checks
  component/coturn: build with slapos libnsl
  component/apache-php: build with slapos libnsl
  repman: improve parameters used for cluster
  component/theia: version up 1.21.0
  software/theia: update python packages in python-language-server-requirements
  component/theia: update plugins with current versions
  ...