Fix GLM video frame padding for temporal patches (#47141)
Fix GLM/llama3 video frame padding for temporal patches
Pad videos to the next multiple of `temporal_patch_size` instead of
always repeating `temporal_patch_size - 1` frames.
This matches the Qwen2-VL/Qwen3-VL video processor logic and keeps
GLM4V, GLM46V, GLM-GA and video_llama3 processors correct when temporal patch sizes
greater than 2 are configured.
