Remove linux/arm/v7 support. v5.15.15

Author: winlinvip

.github/workflows/focal.yml

@@ -57,7 +57,7 @@ jobs:
       - name: Build SRS docker image
         run: |
           echo "Release ossrs/oryx:$SRS_TAG"
-          docker buildx build --platform linux/amd64,linux/arm/v7,linux/arm64/v8 \
+          docker buildx build --platform linux/amd64,linux/arm64/v8 \
             --output "type=image,push=true" \
             --tag ossrs/oryx:$SRS_TAG -f focal/Dockerfile .
       - name: Docker alias images for ossrs/oryx

.github/workflows/nginx-hls-cdn.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Build HTTP docker image
         run: |
           echo "Release ossrs/oryx:$SRS_MAJOR_HTTP-$SRS_VERSION"
-          docker buildx build --platform linux/amd64,linux/arm/v7,linux/arm64/v8 \
+          docker buildx build --platform linux/amd64,linux/arm64/v8 \
             --output "type=image,push=true" \
             --tag ossrs/oryx:$SRS_MAJOR_HTTP \
             -f scripts/nginx-hls-cdn/Dockerfile.http \
@@ -60,7 +60,7 @@ jobs:
       - name: Build HTTPS docker image
         run: |
           echo "Release ossrs/oryx:$SRS_MAJOR_HTTPS-$SRS_VERSION"
-          docker buildx build --platform linux/amd64,linux/arm/v7,linux/arm64/v8 \
+          docker buildx build --platform linux/amd64,linux/arm64/v8 \
             --output "type=image,push=true" \
             --tag ossrs/oryx:$SRS_MAJOR_HTTPS \
             -f scripts/nginx-hls-cdn/Dockerfile.https \

.github/workflows/release.yml

@@ -102,7 +102,7 @@ jobs:
       - name: Build SRS docker image
         run: |
           echo "Release ossrs/oryx:$SRS_TAG"
-          docker buildx build --platform linux/amd64,linux/arm/v7,linux/arm64/v8 \
+          docker buildx build --platform linux/amd64,linux/arm64/v8 \
             --output "type=image,push=true" --build-arg MAKEARGS=build-no-ui \
             --tag ossrs/oryx:$SRS_TAG -f Dockerfile .
       - name: Docker alias images for ossrs/oryx