[vala] (15 commits) Non-fast-forward update to branch wip/issue/607

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/issue/607' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  a31aa35... girparser: Set length_type for arrays instead of CCode.arra
  044b929... Regenergate GIR-based bindings to pick up array length-type

Commits added to the branch:

  62bb360... tests: Add "async signal handler" test to increase coverage (*)
  0b954dc... codegen: Clear existing length values when revisiting a sli (*)
  333912f... tests: Skip runtime of array length type test on "32-bit" (*)
  265a5cd... vapi: Update GIR-based bindings (*)
  e73a038... Sync NEWS from 0.54 (*)
  590e041... codegen: Generated SimpleType structs don't have a type id (*)
  a9f620a... gtk4: Update to 4.6.0+06e5da45 (*)
  8f7dacb... vapi: Update GIR-based bindings (*)
  775187f... Release 0.55.1 (*)
  cd25750... vala: Require lvalue access of delegate target/destroy "fie (*)
  45fe852... codegen: Add support for async main (*)
  78da97b... codegen: Avoid symbol clashes with "va_*" from "stdarg.h" (*)
  8c72e14... parser: Reduce the source reference of main block method to (*)
  b891e21... girparser: Set length_type for arrays instead of CCode.arra
  5b01d88... Regenergate GIR-based bindings to pick up array length-type

(*) This commit already existed in another branch; no separate mail sent