consistent use of double quotes in pyproject.toml (#815)

Author: samuelcolvin

pyproject.toml

@@ -20,30 +20,30 @@ authors = [
 license = "MIT"
 readme = "README.md"
 classifiers = [
-    'Development Status :: 5 - Production/Stable',
-    'Programming Language :: Python',
-    'Programming Language :: Python :: 3',
-    'Programming Language :: Python :: 3 :: Only',
-    'Programming Language :: Python :: 3.8',
-    'Programming Language :: Python :: 3.9',
-    'Programming Language :: Python :: 3.10',
-    'Programming Language :: Python :: 3.11',
-    'Programming Language :: Python :: 3.12',
-    'Programming Language :: Python :: 3.13',
-    'Intended Audience :: Developers',
-    'Intended Audience :: Information Technology',
-    'Intended Audience :: System Administrators',
-    'License :: OSI Approved :: MIT License',
-    'Operating System :: Unix',
-    'Operating System :: POSIX :: Linux',
-    'Environment :: Console',
-    'Environment :: MacOS X',
-    'Topic :: Software Development :: Libraries :: Python Modules',
-    'Topic :: Internet',
-    'Framework :: OpenTelemetry',
-    'Framework :: OpenTelemetry :: Distros',
-    'Framework :: OpenTelemetry :: Exporters',
-    'Framework :: OpenTelemetry :: Instrumentations',
+    "Development Status :: 5 - Production/Stable",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Information Technology",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: Unix",
+    "Operating System :: POSIX :: Linux",
+    "Environment :: Console",
+    "Environment :: MacOS X",
+    "Topic :: Software Development :: Libraries :: Python Modules",
+    "Topic :: Internet",
+    "Framework :: OpenTelemetry",
+    "Framework :: OpenTelemetry :: Distros",
+    "Framework :: OpenTelemetry :: Exporters",
+    "Framework :: OpenTelemetry :: Instrumentations",
 ]
 dependencies = [
     "opentelemetry-sdk >= 1.21.0",