chore: add changesets

Signed-off-by: braks <78412429+bcakmakoglu@users.noreply.github.com>

.changeset/nine-beers-admire.md

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+---
+'@vue-flow/core': patch
+---
+
+Allow depr. connectionLineType to be null

.changeset/popular-coats-burn.md

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+---
+'@vue-flow/core': patch
+---
+
+Add missing straight type to connection line options

.changeset/spotty-boxes-boil.md

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+---
+'@vue-flow/core': patch
+---
+
+Fix connection line not rendering properly when destructuring slot props