title: ISO timestamp is changed to another format in swagger
body: <p>I am making an R API using the package Plumber. I have created a route where a user will send a company name, start and end timestamp. The route looks like this in my plumber file.</p>
  <pre><code>#* @param company is the name of the company
  #* @param start is a timestamp
  #* @param end is a timestamp
  #* @get /info_box/&lt;company&gt;/&lt;start&gt;/&lt;end&gt;
  function(company,start,end){
    future_result &lt;- future(info_box(company,start,end))
    return(future_result)
  }
  
  </code></pre>
  <p>The parameters for start and end time will be passed into a SQL query that is stored in a string variable. This is sent to Athena to be executed. The string looks like this:</p>
  <pre><code>&quot;SELECT *
  FROM the_table
  WHERE completed = true
  AND end_time &gt;= CAST(from_iso8601_timestamp('replacement_start') AS TIMESTAMP)
  AND end_time &lt;= CAST(from_iso8601_timestamp('replacement_end') AS TIMESTAMP);&quot;
  </code></pre>
  <p>replacement_start and replacement_end are replaced with the parameters that the user will send in the API.</p>
  <p>In R when I run the API the swagger page appears where I can test the API out with parameters. I enter the following parameters<a href="https://i.stack.imgur.com/JoQgY.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JoQgY.png" alt="enter image description here" /></a></p>
  <p>and I get this result</p>
  <pre><code>{
    &quot;error&quot;: &quot;500 - Internal server error&quot;,
    &quot;message&quot;: &quot;Error: INVALID_FUNCTION_ARGUMENT: Invalid format: \&quot;2022-01-01T01%3A00%3A00.000Z\&quot; is malformed at \&quot;%3A00%3A00.000Z\&quot;\n&quot;
  }
  
  </code></pre>
  <p>I don't know why swagger is adding %3A00%3A00. I know this is the problem but why is swagger doing this. Is this a different Format than ISO8601 which I am entering?</p>