separate mkdir build from cd build

.ci/ios.sh

@@ -1,6 +1,7 @@
 #!/bin/bash -ex
 
-mkdir build && cd build
+mkdir build
+cd build
 cmake .. -GNinja \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_SYSTEM_NAME=iOS \

.ci/linux.sh

@@ -15,7 +15,8 @@ if [ "$GITHUB_REF_TYPE" == "tag" ]; then
 	export EXTRA_CMAKE_FLAGS=($EXTRA_CMAKE_FLAGS -DENABLE_QT_UPDATE_CHECKER=ON)
 fi
 
-mkdir build && cd build
+mkdir build
+cd build
 cmake .. -G Ninja \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_C_COMPILER_LAUNCHER=ccache \

.ci/macos.sh

@@ -4,7 +4,8 @@ if [ "$GITHUB_REF_TYPE" == "tag" ]; then
 	export EXTRA_CMAKE_FLAGS=(-DENABLE_QT_UPDATE_CHECKER=ON)
 fi
 
-mkdir build && cd build
+mkdir build
+cd build
 cmake .. -GNinja \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_OSX_ARCHITECTURES="$TARGET" \

.ci/transifex.sh

@@ -5,7 +5,8 @@ cmake --version
 gcc -v
 tx --version
 
-mkdir build && cd build
+mkdir build
+cd build
 cmake .. -DENABLE_QT_TRANSLATION=ON -DGENERATE_QT_TRANSLATION=ON -DCMAKE_BUILD_TYPE=Release -DENABLE_SDL2=OFF
 make translation
 cd ..

.ci/windows.sh

@@ -1,6 +1,7 @@
 #!/bin/sh -ex
 
-mkdir build && cd build
+mkdir build
+cd build
 
 if [ "$GITHUB_REF_TYPE" == "tag" ]; then
 	export EXTRA_CMAKE_FLAGS=(-DENABLE_QT_UPDATE_CHECKER=ON)