Support Python 3.13 (elastic#1938)

* Support Python 3.13

* Explicitly ask for Python 3.13 in lint

* Revert to 3.12 for Read the Docs

It does not support Python 3.13.

* Restore 3.12 Nox Python version

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.12"
+          python-version: "3.13"
       - name: Install dependencies
         run: |
           python3 -m pip install nox
@@ -62,7 +62,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.12"
+          python-version: "3.x"
       - name: Install dependencies
         run: |
           python3 -m pip install nox
@@ -81,8 +81,9 @@ jobs:
           "3.10",
           "3.11",
           "3.12",
+          "3.13",
         ]
-        es-version: [8.0.0, 8.13.0]
+        es-version: [8.0.0, 8.15.0]
 
     steps:
       - name: Remove irrelevant software to free up disk space
@@ -104,11 +105,6 @@ jobs:
         uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
-      - name: Set up Python for Nox
-        if: matrix.python-version != '3.12'
-        uses: actions/setup-python@v4
-        with:
-          python-version: 3
       - name: Install dependencies
         run: |
           python3 -m pip install nox

noxfile.py

@@ -35,6 +35,7 @@
         "3.10",
         "3.11",
         "3.12",
+        "3.13",
     ]
 )
 def test(session):
@@ -55,7 +56,7 @@ def test(session):
     session.run("pytest", *argv)
 
 
-@nox.session(python="3.12")
+@nox.session(python="3.13")
 def format(session):
     session.install("black~=24.0", "isort", "unasync", "setuptools", ".[develop]")
     session.run("python", "utils/run-unasync.py")
@@ -67,7 +68,7 @@ def format(session):
     lint(session)
 
 
-@nox.session(python="3.12")
+@nox.session(python="3.13")
 def lint(session):
     session.install("flake8", "black~=24.0", "isort", "unasync", "setuptools")
     session.run("black", "--check", "--target-version=py38", *SOURCE_FILES)

setup.py

@@ -88,6 +88,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
     ],