chore(background-image): add changeset

Author: zeroedin

.changeset/humble-cycles-rest.md

@@ -0,0 +1,20 @@
+---
+"@patternfly/elements": major
+---
+
+✨ Added `<pf-v6-background-image>` replacing `<pf-v5-background-image>`. Background image now follows
+PatternFly v6 design specs.
+
+```html
+<pf-v6-background-image src="/path/to/image.jpg"></pf-v6-background-image>
+```
+
+** Breaking Changes from v5 **
+
+- Renamed tag from `<pf-v5-background-image>` to `<pf-v6-background-image>`
+- ✨ Added v6 design tokens and RTL support via :dir(rtl)
+- ✨ Added `aria-hidden` for screen reader compliance
+- CSS custom properties renamed from `--pf-v5-c-background-image--*` to `--pf-v6-c-background-image--*`
+- Removed `src-2x`, `src-sm`, `src-sm-2x`, `src-lg` responsive source attributes (use CSS custom properties or media queries instead)
+- Removed `filter` boolean attribute
+- `src` no longer reflects to attribute