fix(tests): Ensure all tests honour BINARY envvar

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.

test/launcher.spec.ts

@@ -708,9 +708,9 @@ describe('Launcher specs', function () {
       itFailsFirefox(
         'should be able to connect to the same page simultaneously',
         async () => {
-          const { puppeteer } = getTestState();
+          const { puppeteer, defaultBrowserOptions } = getTestState();
 
-          const browserOne = await puppeteer.launch();
+          const browserOne = await puppeteer.launch(defaultBrowserOptions);
           const browserTwo = await puppeteer.connect({
             browserWSEndpoint: browserOne.wsEndpoint(),
           });
@@ -726,8 +726,8 @@ describe('Launcher specs', function () {
         }
       );
       it('should be able to reconnect', async () => {
-        const { puppeteer, server } = getTestState();
-        const browserOne = await puppeteer.launch();
+        const { puppeteer, server, defaultBrowserOptions } = getTestState();
+        const browserOne = await puppeteer.launch(defaultBrowserOptions);
         const browserWSEndpoint = browserOne.wsEndpoint();
         const pageOne = await browserOne.newPage();
         await pageOne.goto(server.EMPTY_PAGE);