perf: Use GitHub's native arm64 runners (#106)

GitHub now offers free arm64 runners. This means we can drop QEMU and builds will be much faster.

.github/workflows/on-tag.yml

@@ -19,7 +19,7 @@ on:
 jobs:
   build:
     name: Build bitcoind
-    runs-on: ubuntu-22.04
+    runs-on: ${{ matrix.arch == 'amd64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
 
     strategy:
       matrix:
@@ -29,11 +29,10 @@ jobs:
           - arm64v8
 
     env:
-      QEMU_VERSION: v5.0.0
       DOCKER_BUILDKIT: 1
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Setup environment
         run: |
@@ -63,10 +62,6 @@ jobs:
           printf "    DIR: %s\n"  "$DIR"
           printf "  BUILD: %s\n"  "$BUILD"
 
-      - name: Register self-compiled qemu
-        if: matrix.arch != 'amd64'
-        run: docker run --rm --privileged "meedamian/simple-qemu:$QEMU_VERSION-${{ matrix.arch }}" -p yes
-
       - name: Build ${{ env.APP }}
         run: >
           docker build --no-cache "$DIR/"
@@ -130,7 +125,7 @@ jobs:
   deploy:
     name: Deploy to Docker Hub & Github Releases.  Only after successful build.
 
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     needs: build
 
     env:

.github/workflows/test.yml

@@ -12,7 +12,7 @@ on:
 jobs:
   build:
     name: Build bitcoind
-    runs-on: ubuntu-22.04
+    runs-on: ${{ matrix.arch == 'amd64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
 
     strategy:
       fail-fast: false
@@ -29,15 +29,10 @@ jobs:
           - arm64v8
 
     env:
-      QEMU_VERSION: v5.0.0
       DOCKER_BUILDKIT: 1
 
     steps:
-      - uses: actions/checkout@v2
-
-      - name: Register self-compiled qemu
-        if: matrix.arch != 'amd64'
-        run: docker run --rm --privileged "meedamian/simple-qemu:$QEMU_VERSION-${{ matrix.arch }}" -p yes
+      - uses: actions/checkout@v4
 
       - name: Build ${{ env.APP }}
         run: >