chore(changeset): add

.changeset/long-bags-pay.md

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+---
+"@vue-flow/core": patch
+---
+
+Use correct handle position as source x,y position of connection lines

.changeset/rotten-singers-own.md

@@ -0,0 +1,5 @@
+---
+"@vue-flow/core": patch
+---
+
+Correct source handle type to be possibly null when passing as prop to custom connection line components