Build: Enable dependabot actions update PRs, update tested browsers

Instead of listing just iOS versions, also list the device on which tests are
supposed to run, just like in jQuery Core.

Author: mgol

.github/dependabot.yml

@@ -0,0 +1,13 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: "/"
+    schedule:
+      interval: monthly
+
+    # Group all dependabot version update PRs into one
+    groups:
+      github-actions:
+        applies-to: version-updates
+        patterns:
+          - "*"

.github/workflows/browserstack.yml

@@ -24,22 +24,19 @@ jobs:
           - 'IE_11'
           - 'Safari_latest'
           # JTR doesn't take into account the jump from Safari 18 to 26,
-          # so we need to specify versions explicitly. Also, while BrowserStack
-          # already added macOS Tahoe with Safari 26, it's not a stable release
-          # yet, so we need to test on Safari 17 as well.
+          # so we need to specify versions explicitly.
           # See https://github.com/jquery/jquery-test-runner/issues/17
           - 'Safari_18'
-          - 'Safari_17'
           - 'Chrome_latest'
           - 'Chrome_latest-1'
           - 'Opera_latest'
           - 'Edge_latest'
           - 'Edge_latest-1'
           - 'Firefox_latest'
           - 'Firefox_latest-1'
-          - '__iOS_18'
-          - '__iOS_17'
-          - '__iOS_16'
+          - '_:iPhone 17_iOS_26'
+          - '_:iPhone 16_iOS_18'
+          - '_:iPhone 15 Pro_iOS_17'
     steps:
       - name: Checkout
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2