Create a common function to write resulting JSON files to the releases directory.
It makes this task simpler to read and maintain, while making it modifiable at a central point in the future.
One example of such modification could be the sorting of the versions in a uniform way for all the scripts.
This creates a common function to fetch HTTP URLs, with enhanced capabilities (retry, use of a known User-Agent).
It makes scripts that need those capabilities simpler, while improving other scripts.
This commit also fixes some scripts that did not log properly (cos.py, eks.py, haproxy.py, palo-alto-networks.py, rhel.py, ros.py, unrealircd.py).
There were two issues with the macOS regexes:
- The regexex accepted only spaces separator. But non-breakable spaces are also used from time to time. Replacing spaces by \s fixed the issue (other product regexes were also updated - never know).
- The first regex, the one that accepted major releases with no minor version, were not useful (covered by the second regex) and partly catched valid versions (such as 13.1), who was then ignored. I removed it.
