This update for curl fixes the following issues:

- CVE-2021-22898: Fixed curl TELNET stack contents disclosure (bsc#1186114).
- Allow partial chain verification [jsc#SLE-17956]
* Have intermediate certificates in the trust store be treated
as trust-anchors, in the same way as self-signed root CA
certificates are. This allows users to verify servers using
the intermediate cert only, instead of needing the whole chain.
* Set FLAG_TRUSTED_FIRST unconditionally.
* Do not check partial chains with CRL check.

This update was imported from the SUSE:SLE-15-SP2:Update update project.