chore: Update metadata for December 2021 (#5811)
chore: Update metadata for December 2021 (#5811)


google/blockly,mark-friedman/blockly,rachel-fenichel/blockly,rachel-fenichel/blockly,mark-friedman/blockly,rachel-fenichel/blockly,google/blockly,google/blockly,mark-friedman/blockly,mark-friedman/blockly,google/blockly,mark-friedman/blockly,mark-friedman/blockly,google/blockly,google/blockly,rachel-fenichel/blockly,rachel-fenichel/blockly,google/blockly,rachel-fenichel/blockly,rachel-fenichel/blockly