Update HA version badge to 2026.5.4

ha-version-badge.svg

@@ -1,16 +1,16 @@
-<svg width="61.5" height="20" viewBox="0 0 615 200" xmlns="http://www.w3.org/2000/svg" role="img" aria-label="2026.5.2">
-  <title>2026.5.2</title>
-  <linearGradient id="BwIga" x2="0" y2="100%">
+<svg width="61.5" height="20" viewBox="0 0 615 200" xmlns="http://www.w3.org/2000/svg" role="img" aria-label="2026.5.4">
+  <title>2026.5.4</title>
+  <linearGradient id="FGtkD" x2="0" y2="100%">
     <stop offset="0" stop-opacity=".1" stop-color="#EEE"/>
     <stop offset="1" stop-opacity=".1"/>
   </linearGradient>
-  <mask id="PNiXi"><rect width="615" height="200" rx="30" fill="#FFF"/></mask>
-  <g mask="url(#PNiXi)">
+  <mask id="GMAOb"><rect width="615" height="200" rx="30" fill="#FFF"/></mask>
+  <g mask="url(#GMAOb)">
     <rect width="615" height="200" fill="#08C" x="0"/>
-    <rect width="615" height="200" fill="url(#BwIga)"/>
+    <rect width="615" height="200" fill="url(#FGtkD)"/>
   </g>
   <g aria-hidden="true" text-anchor="start" font-family="Verdana,DejaVu Sans,sans-serif" font-size="110">
-    <text x="65" y="148" textLength="500" fill="#000" opacity="0.25">2026.5.2</text>
-    <text x="55" y="138" textLength="500" fill="#fff">2026.5.2</text>
+    <text x="65" y="148" textLength="500" fill="#000" opacity="0.25">2026.5.4</text>
+    <text x="55" y="138" textLength="500" fill="#fff">2026.5.4</text>
   </g>
 </svg>