Use "build" folder instead of "tmp" in CI scripts

.ci/azure-pipelines-linux.yml

@@ -11,7 +11,7 @@ jobs:
   - script: |
       sudo apt -y install cmake gcc g++ libncurses5-dev libreadline-dev libssl-dev make zlib1g-dev
       ./configure
-      make package -C tmp -j $(nproc || sysctl -n hw.ncpu || echo 4)
+      make package -C build -j $(nproc || sysctl -n hw.ncpu || echo 4)
       .ci/appveyor-deb-install-test.sh
       sudo apt-get -y install autoconf libtool liblzo2-dev libpam-dev fping unzip # openvpn build deps
       sudo .ci/start-se-openvpn.sh

.ci/azure-pipelines-win.yml

@@ -11,7 +11,7 @@ jobs:
       configure
   - script: |
      call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
-      cd tmp
+      cd build
       nmake
   - powershell: |
      . .ci\appveyor-vpntest.ps1

.ci/sonarcloud.sh

@@ -5,7 +5,7 @@ RUN_SONARCLOUD="${RUN_SONARCLOUD:-0}"
 
 if [ "${RUN_SONARCLOUD}" = "1" ] && [ ! -z ${SONAR_TOKEN+x} ]; then
    ./configure
-   build-wrapper-linux-x86-64 --out-dir bw-output make -C tmp
+   build-wrapper-linux-x86-64 --out-dir bw-output make -C build
    sonar-scanner -Dsonar.projectKey=SoftEtherVPN_SoftEtherVPN -Dsonar.organization=softethervpn -Dsonar.sources=. -Dsonar.cfamily.build-wrapper-output=bw-output -Dsonar.host.url=https://sonarcloud.io -Dsonar.login=${SONAR_TOKEN}
 else
     echo "Skipping sonar-scan because \$RUN_SONARCLOUD != \"1\" or \$SONAR_TOKEN is not set"