fix: update build_linux_arm to install pyinstaller

Author: joseph-sentry

scripts/build_linux_arm.sh

@@ -4,5 +4,6 @@ pip install -r requirements.txt
 pip install .
 python setup.py build
 STATICCODECOV_LIB_PATH=$(find build/ -maxdepth 1 -type d -name 'lib.*' -print -quit | xargs -I {} sh -c "find {} -type f -name 'staticcodecov*' -print -quit | sed 's|^./||'")
+pip install pyinstaller
 pyinstaller --add-binary ${STATICCODECOV_LIB_PATH}:. --copy-metadata codecov-cli --hidden-import staticcodecov_languages -F codecov_cli/main.py
 cp ./dist/main ./dist/codecovcli_$1