Signed-off-by: Chris Privitere <[email protected]>

docs: update PR template to use new icon set

Syncing with upstream capi

Author: cprivitere

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,7 +1,7 @@
-<!-- please add a icon to the title of this PR (see https://sigs.k8s.io/cluster-api/VERSIONING.md), and delete this line and similar ones -->
-<!-- the icon will be either ⚠️ (:warning:, major or breaking changes), ✨ (:sparkles:, minor or feature additions), 🐛 (:bug:, patch and bugfixes), 📖 (:book:, documentation or proposals), or 🏃 (:running:, other) -->
+<!-- please add an icon to the title of this PR (see https://sigs.k8s.io/cluster-api/CONTRIBUTING.md#contributing-a-patch), and delete this line and similar ones -->
+<!-- the icon will be either ⚠️ (:warning:, major or breaking changes), ✨ (:sparkles:, feature additions), 🐛 (:bug:, patch and bugfixes), 📖 (:book:, documentation or proposals), or 🌱 (:seedling:, minor or other) -->
 
 **What this PR does / why we need it**:
 
 **Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
-Fixes #
+Fixes #