ci: consolidate to merged refs (avendish main + actions @master)

avendish#105 and ossia/actions#9 are merged, so:
- re-pin avendish to main (7f7dac9, the embind link-order fix)
- point both workflows at ossia/actions ...@master
- drop the testing-only migrate-avnd-addon push trigger and the
  workflow_dispatch/pull_request types scaffolding

Final shipping config for the template.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jcelerier

.github/workflows/builds.yaml

@@ -2,21 +2,17 @@ name: Build
 
 on:
   pull_request:
-    types: [opened, synchronize, reopened, edited]
   push:
-    branches: [main, master, migrate-avnd-addon]
+    branches: [main, master]
     tags: ['v*']
-  workflow_dispatch:
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
 jobs:
   ci:
-    # Pinned to the feature branch while it's in review. Switch to @master once
-    # ossia/actions PR (drop-ossia-sdk-dep) lands.
-    uses: ossia/actions/.github/workflows/avnd-addon.yml@drop-ossia-sdk-dep
+    uses: ossia/actions/.github/workflows/avnd-addon.yml@master
     secrets: inherit
     with:
       pd: true

.github/workflows/portability.yml

@@ -3,18 +3,15 @@ name: Portability
 on:
   pull_request:
   push:
-    # migrate-avnd-addon is the in-review branch; drop it once this lands on main.
-    branches: [main, master, migrate-avnd-addon]
+    branches: [main, master]
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  group: ${{ github.workflow }}-portability-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
 jobs:
   smoke:
-    # Pinned to the feature branch while it's in review. Switch to @master once
-    # ossia/actions PR (drop-ossia-sdk-dep) lands.
-    uses: ossia/actions/.github/workflows/avnd-portability.yml@drop-ossia-sdk-dep
+    uses: ossia/actions/.github/workflows/avnd-portability.yml@master
     secrets: inherit
     with:
       # iOS off: Xcode multi-config intermediate-path plumbing fails for an

CMakeLists.txt

@@ -10,7 +10,7 @@ if(NOT Avendish_FOUND)
   FetchContent_Declare(
     Avendish
     GIT_REPOSITORY "https://github.com/celtera/avendish"
-    GIT_TAG 1d90a1527ba8b2f26189d9c06e6977562a5e39ec)
+    GIT_TAG 7f7dac9)
   FetchContent_Populate(Avendish)
   list(APPEND CMAKE_PREFIX_PATH "${avendish_SOURCE_DIR}")
   find_package(Avendish REQUIRED)