Changes since langchain-anthropic==1.4.6

hotfix(anthropic): regenerate cassette (#38376) release(anthropic): 1.4.7 (#38373) chore: bump vcrpy from 8.1.1 to 8.2.1 in /libs/partners/anthropic (#38324) chore: bump langsmith from 0.8.5 to 0.8.18 in /libs/partners/anthropic (#38325) docs(anthropic): clarify prompt caching middleware docstring (#38206) docs: refresh README installation and resources (#38119) test(core,langchain): update tests for explicit deserialization allowlists (#38118) release(core): 1.4.7 (#38111) fix(core,partners): rename package version trace metadata (#38110)