Bug 1826624 - Ensure that the http/2 upload bandwidth test does not use http/3 r=sparky,perftest-reviewers

We will add separate http/3 tests once this one is finalized.
Also changed the data file to avoid the Google Cloud app engine limit of 32MB.
https://cloud.google.com/appengine/docs/standard/quotas

Differential Revision: https://phabricator.services.mozilla.com/D174784

taskcluster/ci/fetch/browsertime.yml

@@ -171,7 +171,7 @@ upload-speed-test-file:
     description: "File used for the upload speed performance test"
     fetch:
         type: static-url
-        artifact-name: upload-test-50MB.dat
-        url: https://github.com/mozilla/perf-automation/raw/master/test_files/upload-test-50MB.dat
-        sha256: 107c214d7b5318bdf954287fbbbcffb47d5b4d9a87732e97cac68f757306406a
-        size: 52428800
+        artifact-name: upload-test-32MB.dat
+        url: https://github.com/mozilla/perf-automation/raw/master/test_files/upload-test-32MB.dat
+        sha256: 72caa47a951e9f37d1e1be2119a64b1fbc6348c4f37d574bee4587e02b8f96a5
+        size: 32000000

testing/perfdocs/generated/raptor.rst

@@ -7114,7 +7114,7 @@ Browsertime tests that use a custom pageload test script. These use the pageload
    * **alert threshold**: 2.0
    * **apps**: firefox, chrome, chromium, safari
    * **browser cycles**: 1
-   * **browsertime args**: --browsertime.upload_iterations=10 --firefox.preference=network.http.http3.enabled:false
+   * **browsertime args**: --browsertime.upload_iterations=10 --firefox.preference=network.http.http3.enable:false --chrome.args disable-quic
    * **custom data**: true
    * **expected**: pass
    * **gecko profile entries**: 14000000

testing/raptor/browsertime/upload.js

@@ -57,7 +57,7 @@ module.exports = async function(context, commands) {
 
     let localFilePath = path.join(
       `${context.options.browsertime.moz_fetch_dir}`,
-      "upload-test-50MB.dat"
+      "upload-test-32MB.dat"
     );
 
     context.log.info("Sending file path: " + localFilePath);

testing/raptor/raptor/tests/custom/browsertime-upload.ini

@@ -21,7 +21,7 @@ use_live_sites = true
 # upload performance custom test
 
 [upload]
-browsertime_args = --browsertime.upload_iterations=10 --firefox.preference=network.http.http3.enabled:false
+browsertime_args = --browsertime.upload_iterations=10 --firefox.preference=network.http.http3.enable:false --chrome.args disable-quic
 custom_data = true
 unit = mbps
 lower_is_better = false