Always break long branch-names (#2002)

* Break long branch names

* Create early-spoons-greet.md

* Stylelint auto-fixes

Co-authored-by: Actions Auto Build <[email protected]>

Author: simurai

.changeset/early-spoons-greet.md

@@ -0,0 +1,5 @@
+---
+"@primer/css": patch
+---
+
+Always break long `branch-name`s

src/branch-name/branch-name.scss

@@ -8,6 +8,7 @@
   padding: 2px 6px;
   font: 12px $mono-font;
   color: var(--color-fg-muted);
+  word-break: break-all;
   background-color: var(--color-accent-subtle);
   border-radius: $border-radius;