[BottomSheet] Fixed IME bottom padding is ignored in edge-to-edge case. Reverted to use deprecated getSystemWindowInsetBottom() for bottom inset to align with behaviors in 1.5.0.

Resolves: #2543
PiperOrigin-RevId: 428856163

Author: pekingme

lib/java/com/google/android/material/bottomsheet/BottomSheetBehavior.java

@@ -1466,6 +1466,7 @@ private void setWindowInsetsListener(@NonNull View child) {
         child,
         new ViewUtils.OnApplyWindowInsetsListener() {
           @Override
+          @SuppressWarnings("deprecation") // getSystemWindowInsetBottom is used for adjustResize.
           public WindowInsetsCompat onApplyWindowInsets(
               View view, WindowInsetsCompat insets, RelativePadding initialPadding) {
             Insets systemBarInsets = insets.getInsets(WindowInsetsCompat.Type.systemBars());
@@ -1481,7 +1482,9 @@ public WindowInsetsCompat onApplyWindowInsets(
             int rightPadding = view.getPaddingRight();
 
             if (paddingBottomSystemWindowInsets) {
-              insetBottom = systemBarInsets.bottom;
+              // Intentionally uses getSystemWindowInsetBottom to apply padding properly when
+              // adjustResize is used as the windowSoftInputMode.
+              insetBottom = insets.getSystemWindowInsetBottom();
               bottomPadding = initialPadding.bottom + insetBottom;
             }