Update snapshots

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/components/__tests__/__snapshots__/column_back_button-test.js.snap

@@ -4,6 +4,7 @@ exports[`<ColumnBackButton /> renders correctly 1`] = `
 <button
   className="column-back-button"
   onClick={[Function]}
+  onKeyUp={[Function]}
 >
   <i
     alt="chevron-left"

app/soapbox/components/__tests__/__snapshots__/column_back_button_slim-test.js.snap

@@ -7,6 +7,7 @@ exports[`<ColumnBackButtonSlim /> renders correctly 1`] = `
   <div
     className="column-back-button column-back-button--slim-button"
     onClick={[Function]}
+    onKeyUp={[Function]}
     role="button"
     tabIndex="0"
   >