chore(bench): display bench stats as comment in PR

[xcoulon]

Fixes #992

Signed-off-by: Xavier Coulon [email protected]

[github-actions]

Comparing with master branch:

name                                          old time/op    new time/op    delta
RealDocumentProcessing/demo.adoc-2              22.4ms ± 4%    22.9ms ± 2%  +2.32%  (p=0.043 n=10+9)
RealDocumentProcessing/vertx-examples.adoc-2    64.6ms ± 3%    66.6ms ± 3%  +3.03%  (p=0.003 n=10+8)
RealDocumentProcessing/mocking.adoc-2           62.6ms ± 4%    63.6ms ± 8%    ~     (p=0.278 n=9+10)

name                                          old alloc/op   new alloc/op   delta
RealDocumentProcessing/demo.adoc-2              8.85MB ± 0%    8.85MB ± 0%    ~     (p=0.315 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2    24.0MB ± 0%    24.0MB ± 0%    ~     (p=0.105 n=10+10)
RealDocumentProcessing/mocking.adoc-2           21.6MB ± 0%    21.6MB ± 0%    ~     (p=0.165 n=10+10)

name                                          old allocs/op  new allocs/op  delta
RealDocumentProcessing/demo.adoc-2                106k ± 0%      106k ± 0%    ~     (p=0.720 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2      305k ± 0%      305k ± 0%    ~     (p=0.865 n=10+10)
RealDocumentProcessing/mocking.adoc-2             326k ± 0%      326k ± 0%  -0.00%  (p=0.005 n=10+10)

Comparing with latest release:

name                                          old time/op    new time/op    delta
RealDocumentProcessing/demo.adoc-2              22.4ms ± 4%    22.3ms ± 4%    ~     (p=0.971 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2    64.6ms ± 3%    62.8ms ± 3%  -2.76%  (p=0.007 n=10+10)
RealDocumentProcessing/mocking.adoc-2           62.6ms ± 4%    63.8ms ± 4%    ~     (p=0.211 n=9+10)

name                                          old alloc/op   new alloc/op   delta
RealDocumentProcessing/demo.adoc-2              8.85MB ± 0%    8.85MB ± 0%    ~     (p=0.436 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2    24.0MB ± 0%    24.0MB ± 0%    ~     (p=0.315 n=10+10)
RealDocumentProcessing/mocking.adoc-2           21.6MB ± 0%    21.6MB ± 0%  -0.00%  (p=0.017 n=10+9)

name                                          old allocs/op  new allocs/op  delta
RealDocumentProcessing/demo.adoc-2                106k ± 0%      106k ± 0%    ~     (p=0.370 n=10+10)
RealDocumentProcessing/vertx-examples.adoc-2      305k ± 0%      305k ± 0%    ~     (p=0.432 n=10+10)
RealDocumentProcessing/mocking.adoc-2             326k ± 0%      326k ± 0%    ~     (p=0.084 n=10+10)