Update to 4.7

Changelog:

• Bug 4942: --with-filedescriptors does not do anything
• Bug 4928: Cannot convert non-IPv4 to IPv4
• Bug 4823: assertion failed: "lowestOffset () <= target_offset"
• Bug 4796: comm.cc !isOpen(conn->fd) assertion when rotating logs
• Fix squidclient authentication to origin servers
• Fix stack-based buffer-overflow when parsing SNMP messages
• Add support for buffer-size= to UDP logging
• TLS: When using OpenSSL, trust intermediate CAs from trusted store

PR: 237882
Submitted by: timp87@gmail.com (maintainer)
Sponsored by: Netzkommune GmbH