build: bump tiktoken from 0.7.0 to 0.8.0 (#1389)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -22,7 +22,7 @@ langchain = "0.2.16"
 langchain-community = "0.2.17"
 langchain-openai = "0.1.25"
 requests = "2.32.3"
-tiktoken = "0.7.0"
+tiktoken = "0.8.0"
 azure-storage-queue = "12.12.0"
 beautifulsoup4 = "4.12.3"
 fake-useragent = "1.5.1"