fix(tests): ensure all tests honour BINARY envvar (#8092)
fix(tests): ensure all tests honour BINARY envvar (#8092)

Without this patch, two tests ignore the BINARY envvar, and fail when not using
the embedded chromium, unless the chromium executable path is defined via
PUPPETEER_EXECUTABLE_PATH, which should not be considered according to the
docs.
puppeteer/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer