test: tree gardening (#28676)

Looks like massaging the signals test in
8ab0660#diff-f9d332d27364a8a58e52f5d7ffc180df7581589565b62186757b21839aabf889
didn't make it fully green.

As of today it fails on Darwin 13 which is version 22, so we should not
run into the first if.

tests/library/signals.spec.ts

@@ -63,7 +63,7 @@ test.describe('signals', () => {
     const remoteServer = await startRemoteServer('launchServer', { url: server.EMPTY_PAGE });
     const pid = await remoteServer.out('pid');
     process.kill(-pid, 'SIGKILL');
-    if (isMac && browserName === 'webkit' && parseInt(os.release(), 10) >= 22 && os.arch() === 'arm64') {
+    if (isMac && browserName === 'webkit' && parseInt(os.release(), 10) > 22 && os.arch() === 'arm64') {
       // WebKit on newer macOS exits differently.
       expect(await remoteServer.out('exitCode')).toBe('137');
       expect(await remoteServer.out('signal')).toBe('null');

tests/page/page-screenshot.spec.ts

@@ -857,8 +857,9 @@ it.describe('page screenshot animations', () => {
     ]);
   });
 
-  it('should wait for fonts to load', async ({ page, server, isWindows, browserName, isLinux }) => {
+  it('should wait for fonts to load', async ({ page, server, isWindows, isAndroid }) => {
     it.fixme(isWindows, 'This requires a windows-specific test expectations. https://github.com/microsoft/playwright/issues/12707');
+    it.skip(isAndroid, 'Different viewport');
     await page.setViewportSize({ width: 500, height: 500 });
     const fontRequestPromise = new Promise<any>(resolve => {
       // Stall font loading.