ensure font-stretch-[50.5%] stays as an arbitrary value

Author: RobinMalfait

packages/@tailwindcss-upgrade/src/template/codemods/arbitrary-value-to-bare-value.test.ts

@@ -11,6 +11,7 @@ test.each([
   // Only 50-200% (inclusive) are valid:
   // https://developer.mozilla.org/en-US/docs/Web/CSS/font-stretch#percentage
   ['font-stretch-[50%]', 'font-stretch-50%'],
+  ['font-stretch-[50.5%]', 'font-stretch-[50.5%]'],
   ['font-stretch-[201%]', 'font-stretch-[201%]'],
   ['font-stretch-[49%]', 'font-stretch-[49%]'],
   // Should stay as-is

packages/@tailwindcss-upgrade/src/template/codemods/arbitrary-value-to-bare-value.ts

@@ -21,8 +21,8 @@ export function arbitraryValueToBareValue(
       clone.value.dataType === null &&
       clone.root === 'font-stretch'
     ) {
-      if (clone.value.value.endsWith('%')) {
-        let percentage = parseFloat(clone.value.value)
+      if (clone.value.value.endsWith('%') && isPositiveInteger(clone.value.value.slice(0, -1))) {
+        let percentage = parseInt(clone.value.value)
         if (percentage >= 50 && percentage <= 200) {
           changed = true
           clone.value = {