Support new version of tiktoken that are working with langchain (tag "^0.3.2" => "">=0.3.2,<0.6.0" and python "^3.9" =>">=3.9") (#11006)

- **Description:**
be able to use langchain with other version than tiktoken 0.3.3 i.e
0.5.1
  - **Issue:**
cannot installed the conda-forge version since it applied all optional
dependency:
       https://github.com/conda-forge/langchain-feedstock/pull/85  
replace "^0.3.2" by "">=0.3.2,<0.6.0" and "^3.9" by python=">=3.9"
      Tested with python 3.10, langchain=0.0.288 and tiktoken==0.5.0

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>

libs/langchain/poetry.lock

@@ -10652,4 +10652,4 @@ text-helpers = ["chardet"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8.1,<4.0"
-content-hash = "ce46d0939d26903ed3de2f4d297d7aa6b359d1a466df80861e9898d865bfc8c9"
+content-hash = "89d73e8d026d8df841d4aaedd687dbd14900bc36ae52d5bb8cf03e8877d8222c"

libs/langchain/pyproject.toml

@@ -31,7 +31,7 @@ transformers = {version = "^4", optional = true}
 beautifulsoup4 = {version = "^4", optional = true}
 torch = {version = ">=1,<3", optional = true}
 jinja2 = {version = "^3", optional = true}
-tiktoken = {version = "^0.3.2", optional = true, python="^3.9"}
+tiktoken = {version = ">=0.3.2,<0.6.0", optional = true, python=">=3.9"}
 pinecone-client = {version = "^2", optional = true}
 pinecone-text = {version = "^0.4.2", optional = true}
 pymongo = {version = "^4.3.3", optional = true}