Fix scripts requiring rendering pages with javascript (#310)

Replace request_html by playwright, as request_html, as it is [not maintained anymore](https://pypi.org/project/requests-html/) and scripts using it, such as artifactory.py, started to fail.

src/artifactory.py

@@ -0,0 +1,21 @@
+from bs4 import BeautifulSoup
+from common import dates, http, releasedata
+
+"""Fetches Artifactory versions from https://jfrog.com, using requests_html because JavaScript is
+needed to render the page."""
+
+with releasedata.ProductData("artifactory") as product_data:
+    content = http.fetch_javascript_url('https://jfrog.com/help/r/jfrog-release-information/artifactory-end-of-life')
+    soup = BeautifulSoup(content, 'html.parser')
+
+    for row in soup.select('.informaltable tbody tr'):
+        cells = row.select("td")
+        if len(cells) >= 2:
+            version = cells[0].text.strip()
+            if version:
+                date_str = cells[1].text.strip().replace("_", "-").replace("Sept-", "Sep-")
+                product_data.declare_version(version, dates.parse_date(date_str))
+
+    # 7.29.9 release date is wrong on https://jfrog.com/help/r/jfrog-release-information/artifactory-end-of-life.
+    # Sent a mail to jfrog-help-center-feedback@jfrog.com to fix it, but in the meantime...
+    product_data.declare_version('7.29.9', dates.date(2022, 1, 11))