Update test-requirements to protobuf6

Author: bouk

opentelemetry-proto/test-requirements.txt

@@ -3,7 +3,7 @@ importlib-metadata==6.11.0
 iniconfig==2.0.0
 packaging==24.0
 pluggy==1.5.0
-protobuf==5.26.1
+protobuf==6.31.1
 py-cpuinfo==9.0.0
 pytest==7.4.4
 tomli==2.0.1

tox.ini

@@ -10,9 +10,9 @@ envlist =
     pypy3-test-opentelemetry-api
     lint-opentelemetry-api
 
-    py3{9,10,11,12,13}-test-opentelemetry-proto-protobuf5
-    pypy3-test-opentelemetry-proto-protobuf5
-    lint-opentelemetry-proto-protobuf5
+    py3{9,10,11,12,13}-test-opentelemetry-proto-protobuf6
+    pypy3-test-opentelemetry-proto-protobuf6
+    lint-opentelemetry-proto-protobuf6
 
     py3{9,10,11,12,13}-test-opentelemetry-sdk
     pypy3-test-opentelemetry-sdk
@@ -111,7 +111,7 @@ deps =
 
   test-utils: -r {toxinidir}/tests/opentelemetry-test-utils/test-requirements.txt
 
-  opentelemetry-proto-protobuf5: -r {toxinidir}/opentelemetry-proto/test-requirements.txt
+  opentelemetry-proto-protobuf6: -r {toxinidir}/opentelemetry-proto/test-requirements.txt
 
   exporter-opencensus: -r {toxinidir}/exporter/opentelemetry-exporter-opencensus/test-requirements.txt
 
@@ -169,8 +169,8 @@ commands =
   lint-opentelemetry-sdk: pylint {toxinidir}/opentelemetry-sdk
   benchmark-opentelemetry-sdk: pytest {toxinidir}/opentelemetry-sdk/benchmarks --benchmark-json={toxinidir}/opentelemetry-sdk/sdk-benchmark.json {posargs}
 
-  test-opentelemetry-proto-protobuf5: pytest {toxinidir}/opentelemetry-proto/tests {posargs}
-  lint-opentelemetry-proto-protobuf5: pylint {toxinidir}/opentelemetry-proto
+  test-opentelemetry-proto-protobuf6: pytest {toxinidir}/opentelemetry-proto/tests {posargs}
+  lint-opentelemetry-proto-protobuf6: pylint {toxinidir}/opentelemetry-proto
 
   test-opentelemetry-semantic-conventions: pytest {toxinidir}/opentelemetry-semantic-conventions/tests {posargs}
   lint-opentelemetry-semantic-conventions: pylint {toxinidir}/opentelemetry-semantic-conventions