[BUILD] CURL versions discrepancies with bazel

Describe your environment
Ubuntu 20.04 with its curl/libcurl v 7.68.0-1ubuntu2.21
bazel 5.4.1

Steps to reproduce
Created an OtlpHttpExporter

What is the expected behavior?
No problem connecting, unsupported options not being used

What is the actual behavior?

[Error] File: external/io_opentelemetry_cpp/ext/src/http/client/curl/http_operation_curl.cc:526 CURL, set option <20312> failed: <An unknown option was passed in to libcurl>
[Error] File: external/io_opentelemetry_cpp/exporters/otlp/src/otlp_http_client.cc:200 [OTLP HTTP Client] Session state: connection failed.An unknown option was passed in to libcurl
[Error] File: external/io_opentelemetry_cpp/exporters/otlp/src/otlp_http_client.cc:168 [OTLP HTTP Client] Session state: session create failed.
[Error] File: external/io_opentelemetry_cpp/exporters/otlp/src/otlp_http_exporter.cc:118 [OTLP HTTP Client] ERROR: Export 4 trace span(s) error: 1 

20312 is CURLOPT_PREREQFUNCTION you can see here that it is supported in curl 7.80.0 and above, although otlp exporter tries to use it for 7.5 and above which is exactly my case for producing the bug 7.5<7.68<7.80

So I think simply changing the test for the curl version will fix this bug, and I will post a PR for that in a couple of minutes.

https://github.com/open-telemetry/opentelemetry-cpp/blob/d32f9609b965dbb34030c1740ddb464d93cd3065/ext/include/opentelemetry/ext/http/client/curl/http_operation_curl.h#L105

https://github.com/open-telemetry/opentelemetry-cpp/blob/d32f9609b965dbb34030c1740ddb464d93cd3065/ext/src/http/client/curl/http_operation_curl.cc#L155

https://github.com/open-telemetry/opentelemetry-cpp/blob/d32f9609b965dbb34030c1740ddb464d93cd3065/ext/src/http/client/curl/http_operation_curl.cc#L1047

The other option CURLOPT_PREREQDATA which is also concerned appeared in the same curl version 7.80.0, so all should be fine in one fix.

Not sure I can unit test that though...

Start with ext/include/opentelemetry/ext/http/client/curl/http_operation_curl.h and the referenced sections of ext/src/http/client/curl/http_operation_curl.cc. Compare the version checks for CURLOPT_PREREQFUNCTION and CURLOPT_PREREQDATA with their availability in curl 7.80.0; done means Ubuntu curl 7.68 no longer receives unsupported options and the OTLP HTTP exporter connects successfully.