Make OSDF test for StatHTTP

[joereuss12]

Has 2 pelican:// tests for now and need to change one to be an osdf test. Waiting for a #878 merge to do this

[joereuss12]

This is done already:

pelican/client/fed_test.go

Lines 422 to 439 in b8040c0

	t.Run("testStatHttpOSDFScheme", func(t *testing.T) {
	_, err := config.SetPreferredPrefix("OSDF")
	assert.NoError(t, err)
	testFileContent := "test file content"
	// Drop the testFileContent into the origin directory
	tempFile, err := os.Create(filepath.Join(fed.Exports[0].StoragePrefix, "test.txt"))
	assert.NoError(t, err, "Error creating temp file")
	_, err = tempFile.WriteString(testFileContent)
	assert.NoError(t, err, "Error writing to temp file")
	tempFile.Close()
	viper.Set("Logging.DisableProgressBars", true)
	tempPath := tempFile.Name()
	fileName := filepath.Base(tempPath)
	uploadURL := fmt.Sprintf("osdf://%s/%s", fed.Exports[0].FederationPrefix, fileName)
	hostname := fmt.Sprintf("%v:%v", param.Server_WebHost.GetString(), param.Server_WebPort.GetInt())