Reasoning effort now a standard parameter

Changes since langchain-fireworks==1.4.4

release(fireworks): 1.5.0 (#38986) feat(core): add reasoning_effort as a standard chat model parameter (#38887) chore: bump langsmith from 0.10.2 to 0.10.6 in /libs/partners/fireworks (#38914) fix: patch Dependabot dependency vulnerabilities (#38853) chore: bump langsmith from 0.9.5 to 0.10.2 in /libs/partners/fireworks (#38830)