fix: change label HTML tag in cv-file-uploader component (#1145)

change label tag from strong to p for semantic reasons

Co-authored-by: Caio Armestrong Fernandes Costa Jardim <caio.a@ibm.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/core/src/components/cv-file-uploader/cv-file-uploader.vue

@@ -1,6 +1,6 @@
 <template>
   <cv-form-item class="cv-file-uploader">
-    <strong :class="`${carbonPrefix}--file--label`">{{ label }}</strong>
+    <p :class="`${carbonPrefix}--file--label`">{{ label }}</p>
     <p :class="`${carbonPrefix}--label-description`">{{ helperText }}</p>
     <div :class="`${carbonPrefix}--file`" data-file>
       <label