Log Message:
serf: update to 1.3.10.

Apache Serf 1.3.10 [2023-xx-xx, from tags/1.3.10, rxxxxxxx]
  Support for OpenSSL 3 (r1901937, ...)
  Fix issue #171: Win32: Running tests fails with "no OPENSSL_Applink" \ 
error
  Fix issue #194: Win32: Linking error when building against OpenSSL 1.1+
  Fix issue #198: OpenSSL BIO control method incorrectly handles unknown requests
  Fix issue #202: SSL tests are not passing with OpenSSL 3
  Fix error handling when reading the outgoing request body (r1804534, ...)
  Fix handling of invalid chunk lengths in the dechunk bucket (r1804005, ...)
  Fix an endless loop in the deflate bucket with truncated input (r1805301)
  Fix BIO control handlers to support BIO_CTRL_EOF (r1902208)
  Fix a CRT mismatch issue caused by using certain OpenSSL functions (r1909252)
  Build changes to support VS2017, VS2019 and VS2022 (r1712131, ...)
  Build changes to support Python 3 (r1875933)