ci: fix ADC binary extraction path (main.js → main.cjs)

The ghcr.io/api7/adc:dev Docker image now bundles main.cjs instead
of main.js at the container root. Update all workflow files that
extract the ADC binary via docker cp.

Author: jarvis9443

.github/workflows/apisix-e2e-test.yml

@@ -103,7 +103,7 @@ jobs:
         if: ${{ env.ADC_VERSION == 'dev' }}
         run: |
           docker create --name adc-temp ghcr.io/api7/adc:dev
-          docker cp adc-temp:main.js adc.js
+          docker cp adc-temp:main.cjs adc.js
           docker rm adc-temp
           node $(pwd)/adc.js -v
           echo "ADC_BIN=node $(pwd)/adc.js" >> $GITHUB_ENV

.github/workflows/e2e-test-k8s.yml

@@ -100,7 +100,7 @@ jobs:
         if: ${{ env.ADC_VERSION == 'dev' }}
         run: |
           docker create --name adc-temp ghcr.io/api7/adc:dev
-          docker cp adc-temp:main.js adc.js
+          docker cp adc-temp:main.cjs adc.js
           docker rm adc-temp
           node $(pwd)/adc.js -v
           echo "ADC_BIN=node $(pwd)/adc.js" >> $GITHUB_ENV

.github/workflows/e2e-test.yml

@@ -102,7 +102,7 @@ jobs:
         if: ${{ env.ADC_VERSION == 'dev' }}
         run: |
           docker create --name adc-temp ghcr.io/api7/adc:dev
-          docker cp adc-temp:main.js adc.js
+          docker cp adc-temp:main.cjs adc.js
           docker rm adc-temp
           node $(pwd)/adc.js -v
           echo "ADC_BIN=node $(pwd)/adc.js" >> $GITHUB_ENV