upgrade php packages

Author: fabiodcorreia

package_versions.txt

@@ -28,17 +28,17 @@ nghttp2-libs-1.41.0-r0
 nginx-1.18.0-r0
 pcre-8.44-r0
 pcre2-10.35-r0
-php7-7.3.20-r0
-php7-common-7.3.20-r0
-php7-fileinfo-7.3.20-r0
-php7-fpm-7.3.20-r0
-php7-json-7.3.20-r0
-php7-mbstring-7.3.20-r0
-php7-openssl-7.3.20-r0
-php7-session-7.3.20-r0
-php7-simplexml-7.3.20-r0
-php7-xml-7.3.20-r0
-php7-xmlwriter-7.3.20-r0
+php7-7.3.21-r0
+php7-common-7.3.21-r0
+php7-fileinfo-7.3.21-r0
+php7-fpm-7.3.21-r0
+php7-json-7.3.21-r0
+php7-mbstring-7.3.21-r0
+php7-openssl-7.3.21-r0
+php7-session-7.3.21-r0
+php7-simplexml-7.3.21-r0
+php7-xml-7.3.21-r0
+php7-xmlwriter-7.3.21-r0
 procps-3.3.16-r0
 readline-8.0.4-r0
 scanelf-1.2.6-r0