feat(backend): allow using regex rules in requiredMatcher acl actions

[prymitive]

Fixes #2001

[prymitive]

Go benchmark diff

name                               old time/op        new time/op        delta
pkg:github.com/prymitive/karma/cmd/karma goos:linux goarch:amd64
Compress/Run-2                           4.81ms ± 1%        4.84ms ± 1%  +0.63%  (p=0.003 n=10+10)
Decompress/Run-2                         3.12ms ± 1%        3.21ms ± 1%  +2.61%  (p=0.000 n=9+10)
CompressionAndDecompression/Run-2        8.02ms ± 1%        8.16ms ± 1%  +1.78%  (p=0.000 n=9+10)
PullAlerts/0.19.0-2                      5.34ms ± 0%        5.39ms ± 1%  +1.07%  (p=0.000 n=10+10)
AlertsAPIMisses/0.19.0-2                 1.26ms ± 3%        1.28ms ± 1%  +1.90%  (p=0.002 n=10+10)
AlertsAPIHits/0.19.0-2                    858µs ± 1%         871µs ± 1%  +1.59%  (p=0.002 n=10+10)
pkg:github.com/prymitive/karma/internal/alertmanager goos:linux goarch:amd64
DedupAlerts/Run-2                         115µs ± 1%         117µs ± 1%  +1.43%  (p=0.000 n=10+10)
DedupAutocomplete/Run-2                  54.6µs ± 1%        55.3µs ± 0%  +1.25%  (p=0.000 n=10+9)
DedupColors/Run-2                        14.9µs ± 0%        15.1µs ± 1%  +1.54%  (p=0.000 n=10+10)

name                               old %/compression  new %/compression  delta
pkg:github.com/prymitive/karma/cmd/karma goos:linux goarch:amd64
Compress/Run-2                             0.04 ± 0%          0.04 ± 0%    ~     (all equal)

name                               old B/alloc        new B/alloc        delta
pkg:github.com/prymitive/karma/cmd/karma goos:linux goarch:amd64
Compress/Run-2                            4.98M ± 0%         4.99M ± 0%  +0.02%  (p=0.000 n=9+7)
Decompress/Run-2                          3.10M ± 0%         3.09M ± 0%  -0.07%  (p=0.021 n=10+9)
CompressionAndDecompression/Run-2         4.99M ± 0%         4.99M ± 0%  -0.11%  (p=0.000 n=10+8)
PullAlerts/0.19.0-2                       3.05M ± 0%         3.05M ± 0%  -0.15%  (p=0.000 n=10+9)
AlertsAPIMisses/0.19.0-2                  3.45M ± 0%         3.45M ± 0%  +0.02%  (p=0.000 n=9+9)
AlertsAPIHits/0.19.0-2                    3.41M ± 0%         3.41M ± 0%  +0.02%  (p=0.000 n=9+9)

name                               old alloc/op       new alloc/op       delta
pkg:github.com/prymitive/karma/cmd/karma goos:linux goarch:amd64
Compress/Run-2                           1.13MB ± 0%        1.13MB ± 0%    ~     (all equal)
Decompress/Run-2                         4.24MB ± 0%        4.24MB ± 0%    ~     (p=0.656 n=10+10)
CompressionAndDecompression/Run-2        5.38MB ± 0%        5.38MB ± 0%    ~     (all equal)
PullAlerts/0.19.0-2                      1.27MB ± 0%        1.27MB ± 0%    ~     (p=0.631 n=10+10)
AlertsAPIMisses/0.19.0-2                 1.29MB ± 0%        1.29MB ± 0%    ~     (p=0.090 n=10+9)
AlertsAPIHits/0.19.0-2                    317kB ± 0%         318kB ± 1%  +0.37%  (p=0.029 n=10+10)
pkg:github.com/prymitive/karma/internal/alertmanager goos:linux goarch:amd64
DedupAlerts/Run-2                        73.7kB ± 0%        73.7kB ± 0%    ~     (p=0.788 n=10+10)
DedupAutocomplete/Run-2                  28.2kB ± 0%        28.2kB ± 0%    ~     (p=0.606 n=10+10)
DedupColors/Run-2                        7.36kB ± 0%        7.36kB ± 0%    ~     (p=0.173 n=9+10)

name                               old allocs/op      new allocs/op      delta
pkg:github.com/prymitive/karma/cmd/karma goos:linux goarch:amd64
Compress/Run-2                             31.0 ± 0%          31.0 ± 0%    ~     (all equal)
Decompress/Run-2                           80.0 ± 0%          80.0 ± 0%    ~     (all equal)
CompressionAndDecompression/Run-2           111 ± 0%           111 ± 0%    ~     (all equal)
PullAlerts/0.19.0-2                       22.5k ± 0%         22.5k ± 0%    ~     (all equal)
AlertsAPIMisses/0.19.0-2                  6.08k ± 0%         6.08k ± 0%  -0.01%  (p=0.003 n=8+10)
AlertsAPIHits/0.19.0-2                    2.35k ± 0%         2.35k ± 0%  +0.03%  (p=0.005 n=9+10)
pkg:github.com/prymitive/karma/internal/alertmanager goos:linux goarch:amd64
DedupAlerts/Run-2                           415 ± 0%           415 ± 0%    ~     (all equal)
DedupAutocomplete/Run-2                     119 ± 0%           119 ± 0%    ~     (all equal)
DedupColors/Run-2                          35.0 ± 0%          35.0 ± 0%    ~     (all equal)