Update CoreLibs to 1.9.20

[adguard-bot]

• [Enhancement] Add an ability to apply cosmetic rules to specific URLs only #124
• [Enhancement] Do not send Do-Not-Track header if the request is made by Safari #1536
• [Enhancement] Improve content type detection using `Sec-Fetch-Dest` header #1382
• [Enhancement] Replace default `Hide your IP` IP address by not blacklisted #1516
• [Enhancement] TLS fingerprint with AG should be the same as without it #1503
• [Fixed] GM_xmlhttpRequest does not work correctly #1400
• [Fixed] HTTPS filtering original certificate caching algorithm #1402
• [Fixed] Kinopoisk.ru authorisation breakage #1502
• [Fixed] Phishing protection issue #1578
• [Fixed] Some correct rules are rejected #1531
• [Fixed] When applied the rule with `$all` modifier, wrong rule printed to the log #1535
• [Fixed] danawa.com - corrupted encoding #1534
• [Fixed] net::ERR_HTTP2_PROTOCOL_ERROR on www.adorama.com #1518
• [Fixed] worldvision.de: Rules with $third-party modifier don't work #1523
• [Other] AdGuard fails at pinning test on badssl.com #1526
• [Other] Bugs in the RegEx validity check #1544
• [Other] GCM notification delay, GCM connection interupted #3956
• [Other] Issue with a `$csp` exceptions #1586
• [Other] Support for fast speeds/Adguard locks at 300mbp/s #1561