Use -y for noninteractive builds in the CI pipeline

.buildkite/pipeline.yml

@@ -2,7 +2,7 @@ steps:
 
   - command: |
         echo "+++ :hammer: Building" && \
-        echo 1 | ./scripts/eosio_build.sh && \
+        ./scripts/eosio_build.sh -y && \
         echo "--- :compression: Compressing build directory" && \
         tar -pczf build.tar.gz build/
     label: ":ubuntu: 16.04 Build"
@@ -23,7 +23,7 @@ steps:
 
   - command: |
         echo "+++ :hammer: Building" && \
-        echo 1 | ./scripts/eosio_build.sh && \
+        ./scripts/eosio_build.sh -y && \
         echo "--- :compression: Compressing build directory" && \
         tar -pczf build.tar.gz build/
     label: ":ubuntu: 18.04 Build"
@@ -44,7 +44,7 @@ steps:
 
   - command: |
         echo "+++ :hammer: Building" && \
-        echo 1 | ./scripts/eosio_build.sh && \
+        ./scripts/eosio_build.sh -y && \
         echo "--- :compression: Compressing build directory" && \
         tar -pczf build.tar.gz build/
     label: ":centos: 7 Build"
@@ -65,7 +65,7 @@ steps:
 
   - command: |
         echo "+++ :hammer: Building" && \
-        echo 1 | ./scripts/eosio_build.sh && \
+        ./scripts/eosio_build.sh -y && \
         echo "--- :compression: Compressing build directory" && \
         tar -pczf build.tar.gz build/
     label: ":aws: 1 Build"
@@ -86,7 +86,7 @@ steps:
 
   - command: |
         echo "+++ :hammer: Building" && \
-        echo 1 | ./scripts/eosio_build.sh && \
+        ./scripts/eosio_build.sh -y && \
         echo "--- :compression: Compressing build directory" && \
         tar -pczf build.tar.gz build/
     label: ":fedora: 27 Build"
@@ -109,7 +109,7 @@ steps:
       echo "--- Creating symbolic link to job directory :file_folder:" && \
       sleep 5 && ln -s "$(pwd)" /data/job && cd /data/job && \
       echo "+++ Building :hammer:" && \
-      echo 1 | ./scripts/eosio_build.sh && \
+      ./scripts/eosio_build.sh -y && \
       echo "--- Compressing build directory :compression:" && \
       tar -pczf build.tar.gz build/
     label: ":darwin: Mojave Build"
@@ -123,7 +123,7 @@ steps:
       echo "--- Creating symbolic link to job directory :file_folder:" && \
       sleep 5 && ln -s "$(pwd)" /data/job && cd /data/job && \
       echo "+++ Building :hammer:" && \
-      echo 1 | ./scripts/eosio_build.sh && \
+      ./scripts/eosio_build.sh -y && \
       echo "--- Compressing build directory :compression:" && \
       tar -pczf build.tar.gz build/
     label: ":darwin: High Sierra Build"