Enable testing for Python 3.14 free threading in tox

Author: TimPansino

tox.ini

@@ -51,13 +51,13 @@ uv_seed = true
 skip_missing_interpreters = false
 envlist =
     # Linux Core Agent Test Suite
-    {linux,linux_arm64}-agent_features-{py38,py39,py310,py311,py312,py313,py314}-{with,without}_extensions,
+    {linux,linux_arm64}-agent_features-{py38,py39,py310,py311,py312,py313,py314,py314t}-{with,without}_extensions,
     {linux,linux_arm64}-agent_features-pypy311-without_extensions,
-    {linux,linux_arm64}-agent_streaming-{py38,py39,py310,py311,py312,py313,py314}-protobuf06-{with,without}_extensions,
+    {linux,linux_arm64}-agent_streaming-{py38,py39,py310,py311,py312,py313,py314,py314t}-protobuf06-{with,without}_extensions,
     {linux,linux_arm64}-agent_streaming-py39-protobuf{03,0319,04,05}-{with,without}_extensions,
-    {linux,linux_arm64}-agent_unittests-{py38,py39,py310,py311,py312,py313,py314}-{with,without}_extensions,
+    {linux,linux_arm64}-agent_unittests-{py38,py39,py310,py311,py312,py313,py314,py314t}-{with,without}_extensions,
     {linux,linux_arm64}-agent_unittests-pypy311-without_extensions,
-    {linux,linux_arm64}-cross_agent-{py38,py39,py310,py311,py312,py313,py314}-{with,without}_extensions,
+    {linux,linux_arm64}-cross_agent-{py38,py39,py310,py311,py312,py313,py314,py314t}-{with,without}_extensions,
     {linux,linux_arm64}-cross_agent-pypy311-without_extensions,
 
     # Windows Core Agent Test Suite
@@ -213,11 +213,11 @@ envlist =
 [testenv]
 deps =
     # Base Dependencies
-    {py39,py310,py311,py312,py313,py314,pypy311}: pytest==8.4.1
+    {py39,py310,py311,py312,py313,py314,py314t,pypy311}: pytest==8.4.1
     py38: pytest==8.3.5
-    {py39,py310,py311,py312,py313,py314,pypy311}: WebTest==3.0.6
+    {py39,py310,py311,py312,py313,py314,py314t,pypy311}: WebTest==3.0.6
     py38: WebTest==3.0.1
-    py313,py314: legacy-cgi==2.6.1  # cgi was removed from the stdlib in 3.13, and is required for WebTest
+    py313,py314,py314t: legacy-cgi==2.6.1  # cgi was removed from the stdlib in 3.13, and is required for WebTest
     iniconfig
     coverage