Fix WebGPU ConvTranspose bias validation in TypeScript and C++ implementations #8495

Job	Run time
1. Build Full ORT and Generate ORT Files	17m 6s
5. Build Extended Minimal	10m 41s
2. Build Minimal (Exceptions Disabled)	10m 8s
6c. Build Extended Minimal (No Optional Features)	7m 51s
6b. Build Minimal (No Optional Features)	7m 48s
6a. Build Regular (No Optional Features)	12m 28s
4. Build Minimal (Globally Allowed Types)	8m 13s
7. Build Extended Minimal (Android NNAPI)	10m 1s
3b. Build Minimal (Type Reduction)	8m 41s
3a. Build Minimal (Custom Ops)	8m 51s
	1h 41m 48s

Provide feedback