Fix depreciation warnings

[dzieciou]

Ref: https://github.com/dzieciou/curl-logger/actions/runs/4092679132/jobs/7057576657

Warning:  /home/runner/work/curl-logger/curl-logger/src/main/java/com/github/dzieciou/testing/curl/Http2Curl.java: Some input files use or override a deprecated API.
Warning:  /home/runner/work/curl-logger/curl-logger/src/main/java/com/github/dzieciou/testing/curl/Http2Curl.java: Recompile with -Xlint:deprecation for details.
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ curl-logger ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 1 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ curl-logger ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 8 source files to /home/runner/work/curl-logger/curl-logger/target/test-classes
Warning:  /home/runner/work/curl-logger/curl-logger/src/test/java/com/github/dzieciou/testing/curl/UsingWithRestAssuredTest.java: Some input files use or override a deprecated API.
Warning:  /home/runner/work/curl-logger/curl-logger/src/test/java/com/github/dzieciou/testing/curl/UsingWithRestAssuredTest.java: Recompile with -Xlint:deprecation for details.
Warning:  /home/runner/work/curl-logger/curl-logger/src/test/java/com/github/dzieciou/testing/curl/UsingWithRestAssuredTest.java: /home/runner/work/curl-logger/curl-logger/src/test/java/com/github/dzieciou/testing/curl/UsingWithRestAssuredTest.java uses unchecked or unsafe operations.
Warning:  /home/runner/work/curl-logger/curl-logger/src/test/java/com/github/dzieciou/testing/curl/UsingWithRestAssuredTest.java: Recompile with -Xlint:unchecked for details.

[dzieciou]

Fixed by #110