patch 8.2.1070: Vim9: leaking memory when lacking white space in dict

Problem:    Vim9: leaking memory when lacking white space in dict.
Solution:   Clear the typval.
diff --git a/src/dict.c b/src/dict.c
index 748a991..be3282d 100644
--- a/src/dict.c
+++ b/src/dict.c
@@ -862,6 +862,7 @@
 	if (vim9script && (*arg)[1] != NUL && !VIM_ISWHITE((*arg)[1]))
 	{
 	    semsg(_(e_white_after), ":");
+	    clear_tv(&tvkey);
 	    goto failret;
 	}
 
diff --git a/src/version.c b/src/version.c
index 8cef53e..a2fadfe 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1070,
+/**/
     1069,
 /**/
     1068,