package/apache: security bump to version 2.4.43

package/apache: security bump to version 2.4.43

Fixes the following security issues:

  *) SECURITY: CVE-2020-1934 (cve.mitre.org)
     mod_proxy_ftp: Use of uninitialized value with malicious backend FTP
     server. [Eric Covener]

  *) SECURITY: CVE-2020-1927 (cve.mitre.org)
     rewrite, core: Set PCRE_DOTALL flag by default to avoid unpredictable
     matches and substitutions with encoded line break characters.
     The fix for CVE-2019-10098 was not effective.  [Ruediger Pluem]

The LICENSE file has been updated to fix a s/waranties/warranties/ typo, so
update the hash to match and adjust the spacing to match recent agreements:

-This software is provided "as is" and any express or implied waranties,
+This software is provided "as is" and any express or implied warranties,

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>