Add maximum allowed gif dimension - #9145

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@11d5960a326750d5838078e36cf38b85af677262, actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

src/type/p5.Font.js:1081:30: Variable 'defaultVal' is declared but never used.

src/type/p5.Font.js:846:35: Variable 'textSize' is declared but never used.

src/webgl/utils.js:2:10: Identifier 'INSTANCE_ID_VARYING_NAME' is imported but never used.

utils/contributors-png.mjs:25:12: Catch parameter 'err' is caught but never used.

utils/contributors-png.js:26:12: Catch parameter 'err' is caught but never used.

src/strands/strands_api.js:10:3: Identifier 'OpCode' is imported but never used.

src/strands/strands_api.js:8:3: Identifier 'TypeInfoFromGLSLName' is imported but never used.

src/strands/ir_dag.js:152:10: Function 'getNodeKey' is declared but never used.

src/strands/ir_dag.js:5:3: Identifier 'StatementType' is imported but never used.