try only upgrade of build-related packages

requirements_test.txt

@@ -10,22 +10,21 @@ async-generator==1.10
     # via
     #   purerpc (setup.py)
     #   trio
-attrs==23.2.0
+attrs==21.4.0
     # via
     #   outcome
+    #   pytest
     #   trio
 build==1.2.1
     # via pip-tools
-cffi==1.16.0
+cffi==1.15.0
     # via cryptography
 click==8.1.7
     # via pip-tools
-cryptography==42.0.5
+cryptography==36.0.2
     # via trustme
 exceptiongroup==1.2.0 ; python_version < "3.11"
-    # via
-    #   purerpc (setup.py)
-    #   pytest
+    # via purerpc (setup.py)
 grpcio==1.62.1
     # via
     #   grpcio-tools
@@ -38,44 +37,46 @@ hpack==3.0.0
     # via h2
 hyperframe==5.2.0
     # via h2
-idna==3.6
+idna==3.3
     # via
     #   anyio
     #   trio
     #   trustme
 importlib-metadata==7.1.0
     # via build
-iniconfig==2.0.0
+iniconfig==1.1.1
     # via pytest
-outcome==1.3.0.post0
+outcome==1.1.0
     # via trio
 packaging==24.0
     # via
     #   build
     #   pytest
 pip-tools==7.4.1
     # via purerpc (setup.py)
-pluggy==1.4.0
+pluggy==1.0.0
     # via pytest
 protobuf==4.25.3
     # via grpcio-tools
-pycparser==2.22
+py==1.11.0
+    # via pytest
+pycparser==2.21
     # via cffi
 pyproject-hooks==1.0.0
     # via
     #   build
     #   pip-tools
-pytest==8.1.1
+pytest==7.1.1
     # via purerpc (setup.py)
 python-forge==18.6.0
     # via purerpc (setup.py)
-sniffio==1.3.1
+sniffio==1.2.0
     # via
     #   anyio
     #   trio
 sortedcontainers==2.4.0
     # via trio
-tblib==3.0.0
+tblib==1.7.0
     # via purerpc (setup.py)
 tomli==2.0.1
     # via
@@ -85,9 +86,9 @@ tomli==2.0.1
     #   pytest
 trio==0.20.0
     # via purerpc (setup.py)
-trustme==1.1.0
+trustme==0.9.0
     # via purerpc (setup.py)
-uvloop==0.19.0 ; platform_system != "Windows"
+uvloop==0.16.0 ; platform_system != "Windows"
     # via purerpc (setup.py)
 wheel==0.43.0
     # via pip-tools