Reduce PR check failures

[wagoodman]

• Adds polling check for install tests to ensure the snapshot server is up
• Elevates CodeQL to only run on main (not on PRs)
• De-duplicates checks as best as possible; CI checks only run on PRs and pushes to main. Pushes to feature branches will no longer trigger CI.

[wagoodman]

I have a parallel PR going that shows the behavior from a fork: #859 (not intended to be merged)

[github-actions]

Benchmark Test Results

Benchmark results from the latest changes vs base branch

name                                                       old time/op    new time/op    delta
ImagePackageCatalogers/ruby-gemspec-cataloger-2              1.68ms ±10%    1.37ms ± 1%  -18.28%  (p=0.008 n=5+5)
ImagePackageCatalogers/python-package-cataloger-2            4.11ms ± 4%    3.46ms ± 0%  -15.65%  (p=0.016 n=5+4)
ImagePackageCatalogers/php-composer-installed-cataloger-2    1.35ms ± 3%    1.12ms ± 0%  -16.62%  (p=0.008 n=5+5)
ImagePackageCatalogers/javascript-package-cataloger-2         976µs ± 2%     811µs ± 0%  -16.97%  (p=0.008 n=5+5)
ImagePackageCatalogers/dpkgdb-cataloger-2                    1.18ms ± 7%    0.95ms ± 1%  -18.99%  (p=0.008 n=5+5)
ImagePackageCatalogers/rpmdb-cataloger-2                     1.03ms ± 1%    0.85ms ± 1%  -17.63%  (p=0.008 n=5+5)
ImagePackageCatalogers/java-cataloger-2                      26.4ms ± 5%    23.7ms ± 1%  -10.11%  (p=0.008 n=5+5)
ImagePackageCatalogers/apkdb-cataloger-2                     1.58ms ± 3%    1.35ms ± 1%  -14.97%  (p=0.008 n=5+5)
ImagePackageCatalogers/go-module-binary-cataloger-2          2.29µs ± 5%    1.99µs ± 1%  -12.94%  (p=0.008 n=5+5)

name                                                       old alloc/op   new alloc/op   delta
ImagePackageCatalogers/ruby-gemspec-cataloger-2               259kB ± 0%     258kB ± 0%   -0.34%  (p=0.008 n=5+5)
ImagePackageCatalogers/python-package-cataloger-2            1.12MB ± 0%    1.12MB ± 0%   -0.25%  (p=0.008 n=5+5)
ImagePackageCatalogers/php-composer-installed-cataloger-2     265kB ± 0%     265kB ± 0%   -0.16%  (p=0.008 n=5+5)
ImagePackageCatalogers/javascript-package-cataloger-2         210kB ± 0%     209kB ± 0%   -0.40%  (p=0.008 n=5+5)
ImagePackageCatalogers/dpkgdb-cataloger-2                     257kB ± 0%     256kB ± 0%   -0.38%  (p=0.008 n=5+5)
ImagePackageCatalogers/rpmdb-cataloger-2                      237kB ± 0%     236kB ± 0%     ~     (p=0.095 n=5+5)
ImagePackageCatalogers/java-cataloger-2                      4.25MB ± 0%    4.23MB ± 0%   -0.59%  (p=0.008 n=5+5)
ImagePackageCatalogers/apkdb-cataloger-2                     1.31MB ± 0%    1.31MB ± 0%   -0.08%  (p=0.008 n=5+5)
ImagePackageCatalogers/go-module-binary-cataloger-2            608B ± 0%      608B ± 0%     ~     (all equal)

name                                                       old allocs/op  new allocs/op  delta
ImagePackageCatalogers/ruby-gemspec-cataloger-2               6.61k ± 0%     6.61k ± 0%     ~     (p=0.444 n=5+5)
ImagePackageCatalogers/python-package-cataloger-2             23.6k ± 0%     23.6k ± 0%     ~     (p=0.881 n=5+5)
ImagePackageCatalogers/php-composer-installed-cataloger-2     7.69k ± 0%     7.69k ± 0%     ~     (p=0.556 n=4+5)
ImagePackageCatalogers/javascript-package-cataloger-2         5.41k ± 0%     5.41k ± 0%     ~     (all equal)
ImagePackageCatalogers/dpkgdb-cataloger-2                     7.18k ± 0%     7.18k ± 0%     ~     (all equal)
ImagePackageCatalogers/rpmdb-cataloger-2                      6.85k ± 0%     6.85k ± 0%     ~     (all equal)
ImagePackageCatalogers/java-cataloger-2                       88.4k ± 0%     88.4k ± 0%     ~     (p=0.889 n=5+5)
ImagePackageCatalogers/apkdb-cataloger-2                      7.76k ± 0%     7.76k ± 0%     ~     (p=0.095 n=4+5)
ImagePackageCatalogers/go-module-binary-cataloger-2            14.0 ± 0%      14.0 ± 0%     ~     (all equal)

[kzantow]

BASH magic there :)