Fix reference error

Author: Sneagan

ofac_scraper.py

@@ -53,7 +53,7 @@ def get_sha256_checksum(self):
 
                 # Scroll to (waiting for animation) and Click the 'File
                 # Signatures' button with the known ID
-                header_element = self.driver.find_element(by, value)
+                header_element = self.driver.find_element(By.ID, "accordion__heading-:r1:")
                 ActionChains(self.driver).move_to_element(header_element).perform()
                 time.sleep(1)
                 header_element.click()