Coq 8.13.0 is supported

However it produces new warnings that should be investigated later.

configure

@@ -503,19 +503,19 @@ missingtools=false
 echo "Testing Coq... " | tr -d '\n'
 coq_ver=$(${COQBIN}coqc -v 2>/dev/null | sed -n -e 's/The Coq Proof Assistant, version \([^ ]*\).*$/\1/p')
 case "$coq_ver" in
-  8.8.0|8.8.1|8.8.2|8.9.0|8.9.1|8.10.0|8.10.1|8.10.2|8.11.0|8.11.1|8.11.2|8.12.0|8.12.1|8.12.2)
+  8.8.0|8.8.1|8.8.2|8.9.0|8.9.1|8.10.0|8.10.1|8.10.2|8.11.0|8.11.1|8.11.2|8.12.0|8.12.1|8.12.2|8.13.0)
         echo "version $coq_ver -- good!";;
   ?*)
         echo "version $coq_ver -- UNSUPPORTED"
         if $ignore_coq_version; then
             echo "Warning: this version of Coq is unsupported, proceed at your own risks."
         else
-            echo "Error: CompCert requires a version of Coq between 8.8.0 and 8.12.2"
+            echo "Error: CompCert requires a version of Coq between 8.8.0 and 8.13.0"
             missingtools=true
         fi;;
   "")
         echo "NOT FOUND"
-        echo "Error: make sure Coq version 8.11.2 is installed."
+        echo "Error: make sure Coq version 8.12.2 is installed."
         missingtools=true;;
 esac