release: v10.1.3

[rachel-fenichel]

Proposed Changes

• Revert "fix: insertion marker's next blocks become real block (fix: insertion marker's next blocks are real blocks #7384)"

• Revert "feat: Insertion marker json deserialization 7316 ( feat: Insertion marker json deserialization 7316 #7364 )" "

Testing

• Dragged blocks in the workspace to trigger insertion markers for assorted blocks and input types.
• Ran browser tests and watched for bad rendering.

Additional Information

See google/blockly-samples#1856 (comment) for context on why we are rolling back the change to make insertion markers use JSON serialization.

Full steps:

• Roll back fix: insertion marker's next blocks are real blocks #7384
• Roll back feat: Insertion marker json deserialization 7316 #7364
• (Current step) Patch release
• Decide whether this was a breaking change
• Roll forward Revert "fix: insertion marker's next blocks are real blocks" #7429 and Revert "feat: Insertion marker json deserialization 7316" #7430 together for the next major release

[BeksOmega]

Changed the target branch to master. LGTM!