remove unnecessary pinning of dependencies and correct formatting in pyproject.toml

Author: davidigandan

pyproject.toml

@@ -20,7 +20,15 @@ classifiers = [
 ]
 license = { text = "BSD-3-Clause" }
 requires-python = ">=3.10"
-dependencies = ["bidict", "pika", "setuptools", "stomp-py>=7", "opentelemetry-api~=1.20.0", "opentelemetry-sdk~=1.20.0", "opentelemetry-exporter-otlp-proto-http~=1.20.0" ]
+dependencies = [
+    "bidict", 
+    "pika",
+    "setuptools",
+    "stomp-py>=7",
+    "opentelemetry-api",
+    "opentelemetry-sdk",
+    "opentelemetry-exporter-otlp-proto-http~=1.20.0" 
+]
 
 [project.urls]
 Download = "https://github.com/DiamondLightSource/python-workflows/releases"