Backwards incompatible opentelemetry-semconv in 4.0.5

[Peter Palaga]

Hi,

as you may know I am the maintainer of Quarkus CXF 
<https://github.com/quarkiverse/quarkus-cxf>.

When trying to upgrade CXF from 4.0.4 to 4.0.5 in our 3.8 LTS branch, I 
found out that it won't work because of missing class 
io.opentelemetry.semconv.HttpAttributes.

It is caused by this upgrade of opentelemetry-semconv from 1.23.1-alpha 
to 1.24.0-alpha <https://github.com/apache/cxf/pull/1774> between CXF 
4.0.4 and 4.0.5, where opentelemetry-semconv 1.24.0-alpha renamed 
SemanticAttributes to HttpAttributes.

CXF was adapted to that change around here 
<https://github.com/apache/cxf/pull/1774/files#diff-c7f236ca73be741018e92028d79517c03d1bbc27fe58a1b8dd4258bb4a80b38eL62-R65> 
but Quarkus 3.8 was not and it keeps using opentelemetry-semconv 
1.21.0-alpha in their 3.8 LTS branch. I believe their approach is 
correct for an LTS branch.

At the same time, there is no point in overriding any opentelemetry 
dependency in favor of CXF on Quarkus CXF side, because (1) it could 
break user applications and (2) Quarkus CXF relies on Quarkus 
Opentelemetry configuration for GraalVM native image which tends to be 
quite sensitive to changes of class names.

It is perhaps not realistic to revert the opentelemetry-semconv upgrades 
for CXF 4.0.6, but could we please be more careful about such breaking 
changes in maintenance branches in the future?

Thanks,

-- Peter