Closes #1512: [Feature] - Update otel-collector image used in integration tests to latest

[heiko-holz]

Closes #1512

Upgrade the image used for the OpenTelemetry Collector (contrib) in the exporter integration tests.

• upgrade the otelcol-contrib image
• set compression to none in the otlp exporter defined in otel-colfig.yaml (from v0.44.0 to v0.45.0, the default compression of the otlp exporter of the OpenTelemetry Collector was changed to gzip)

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This change is 

[codecov]

Codecov Report

Merging #1514 (9ab5372) into master (4ae7a26) will decrease coverage by 0.78%.
The diff coverage is 0.00%.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1514      +/-   ##
============================================
- Coverage     78.64%   77.85%   -0.78%     
  Complexity     2271     2271              
============================================
  Files           232      233       +1     
  Lines          7438     7514      +76     
  Branches        887      894       +7     
============================================
+ Hits           5849     5850       +1     
- Misses         1219     1295      +76     
+ Partials        370      369       -1     

Impacted Files	Coverage Δ
.../src/main/java/com/mindprod/jarcheck/JarCheck.java	0.00% <0.00%> (ø)
.../ocelot/core/metrics/system/GCMetricsRecorder.java	72.95% <0.00%> (+0.82%)	⬆️

[aaronweissler]

Reviewed 4 of 4 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @heiko-holz)

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inspectit-ocelot-core/src/test/java/rocks/inspectit/ocelot/core/exporter/ExporterServiceIntegrationTestBase.java line 65 at r1 (raw file):

    // This image was used previously.
    // static final String COLLECTOR_IMAGE = "ghcr.io/open-telemetry/opentelemetry-java/otel-collector@sha256:d34519458388e55a3fce38a33e6bc424267c1f432927c09e932ba45f7575bd84"; //"otel/opentelemetry-collector";//

I would probably remove these comments, since it works just as well with the new image and if someone actually wants to know, they can still look through the git history.

[heiko-holz]

Reviewable status: 3 of 4 files reviewed, 1 unresolved discussion (waiting on @aaronweissler)

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inspectit-ocelot-core/src/test/java/rocks/inspectit/ocelot/core/exporter/ExporterServiceIntegrationTestBase.java line 65 at r1 (raw file):

Previously, aaronweissler wrote…

I would probably remove these comments, since it works just as well with the new image and if someone actually wants to know, they can still look through the git history.

I agree and I removed the comment

[aaronweissler]

Reviewed 1 of 1 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @heiko-holz)