component/apache: version up 2.4.53, PR 65769

The https://bz.apache.org/bugzilla/show_bug.cgi?id=65769 seems hitting
various software releases with strace like:

select(0, NULL, NULL, NULL, {tv_sec=1, tv_usec=0}) = 0 (Timeout)
wait4(-1, 0x7ffe9579eb84, WNOHANG|WSTOPPED, NULL) = -1 ECHILD (No child processes)
times({tms_utime=561, tms_stime=669, tms_cutime=558, tms_cstime=99}) = 3280801757

Also adapt the --with-pcre switch in order to find the pcre-config during the
build process.

component/apache/buildout.cfg

@@ -39,9 +39,9 @@ configure-options =
 [apache]
 recipe = slapos.recipe.cmmi
 shared = true
-version = 2.4.52
+version = 2.4.53
 url = https://archive.apache.org/dist/httpd/httpd-${:version}.tar.bz2
-md5sum = a94ae42b84309d5ef6e613ae825b92fa
+md5sum = f594f137137b5bdff3998dc17e3e9526
 configure-options = --disable-static
                     --enable-authn-alias
                     --enable-bucketeer
@@ -76,7 +76,7 @@ configure-options = --disable-static
                     --with-z=${zlib:location}
                     --with-expat=${libexpat:location}
                     --with-libxml2=${libxml2:location}/include/libxml2
-                    --with-pcre=${pcre:location}
+                    --with-pcre=${pcre:location}/bin/pcre-config
                     --with-sqlite3=${sqlite3:location}
                     --with-gdbm=${gdbm:location}
                     --with-nghttp2=${nghttp2:location}