[nose2-cov] Pushed amd64 stabilisation back 60 days

Waiting on upstream to stabilise cov-core.
Update metadata cache for upstream's eclass changes
Merge branch 'feat/amd64_keywording'

* feat/amd64_keywording:
  [nose2-cov] Pushed amd64 stabilisation back 60 days
[rad] Pushed x86 stabilisation back 30 days

Waiting on upstream to stabilise colorama.
[showme] Pushed x86 stabilisation back 30 days

Waiting on upstream to stabilise colorama.
[cake] Pushed x86 stabilisation back 30 days

Waiting on upstream to stabilise colorama.
Merge branch 'feat/x86_keywording'

* feat/x86_keywording:
  [cake] Pushed x86 stabilisation back 30 days
  [showme] Pushed x86 stabilisation back 30 days
  [rad] Pushed x86 stabilisation back 30 days