- Update to version 5.15.2+kde268:
* Adapt for q_EVP_PKEY_base_id → q_EVP_PKEY_get_base_id rename in OpenSSL 3
* Don't use a deprecated function if built/linked with OpenSSL v3
* Diffie-Hellman parameters: remove useless 'fix'
* Dont's use DTLS_MAX_VERSION when setting SSL_CTX
* Avoid mixing atomic futex changes and QAtomic
* Fix qtdeclarative baseline test failure for text tables
* Don't let text table cells shrink below their minimum width (boo#1176530)
* Don't shrink a column when it spans multiple columns
* Use icon themes in QPrintPreviewDialog [if they exist]
* QAbstractFileEngine: fix UB (data race) on qt_file_engine_handlers_in_use
* Increment reference count when restoring reference
* Reject truncated and corrupt ascii pnm images
* Fix handling of Sunday in POSIX time-zone rules
* Fix developer build
- Drop patches, support for OpenSSL < 1.1.0 is no longer necessary:
* 0001-Lower-required-version-of-OpenSSL-to-1.1.0.patch
* fix-build-openssl-1.1.0.patch