CI: Fix version parsing and calculating for 2.0 (geany#3594)

The previous logic failed on 2.0 to make the new version number 1.99.99.
This is fixed now even though the code is not perfect or good at all but
should work well enough for its purposes.

scripts/ci_mingw64_geany.sh

@@ -146,8 +146,13 @@ patch_version_information() {
 		MINOR="${BASH_REMATCH[2]}"
 		PATCH="${BASH_REMATCH[4]}"
 		if [ -z "${PATCH}" ] || [ "${PATCH}" = "0" ]; then
-			MINOR="$((MINOR-1))"
-			PATCH="90"
+			if [ "${MINOR}" = "0" ]; then
+				MAJOR="$((MAJOR-1))"
+				MINOR="99"
+			else
+				MINOR="$((MINOR-1))"
+			fi
+			PATCH="99"
 		else
 			PATCH="$((PATCH-1))"
 		fi