Only run release branches check on master PRs

[juan-fernandez]

What does this PR do?

Only run .github/workflows/release-branches-check.yml on PRs to master

Motivation

It's currently running in release branches PRs, which shouldn't happen.

ℹ️ : release checks will fail for this PR, as the workflow file is not added to 2.x or 3.x yet.

[github-actions]

Overall package size

Self size: 4.01 MB
Deduped: 59.61 MB
No deduping: 59.65 MB

Dependency sizes

name	version	self size	total size
@datadog/native-iast-taint-tracking	1.3.1	13.47 MB	13.47 MB
@datadog/pprof	2.1.0	12.31 MB	13.2 MB
@datadog/native-appsec	2.0.0	12.33 MB	12.34 MB
@datadog/native-metrics	1.5.0	7.1 MB	7.11 MB
protobufjs	7.1.2	2.76 MB	6.55 MB
@datadog/native-iast-rewriter	2.0.1	2.09 MB	2.1 MB
opentracing	0.14.7	194.81 kB	194.81 kB
@datadog/sketches-js	2.1.0	109.9 kB	109.9 kB
lodash.sortby	4.7.0	75.76 kB	75.76 kB
lru-cache	7.14.0	74.95 kB	74.95 kB
semver	5.7.1	61.58 kB	61.58 kB
ipaddr.js	2.0.1	59.52 kB	59.52 kB
ignore	5.2.0	48.87 kB	48.87 kB
import-in-the-middle	1.3.4	32.7 kB	37.17 kB
istanbul-lib-coverage	3.2.0	29.34 kB	29.34 kB
retry	0.10.1	27.44 kB	27.44 kB
lodash.uniq	4.5.0	25.01 kB	25.01 kB
limiter	1.1.5	23.17 kB	23.17 kB
lodash.kebabcase	4.1.1	17.75 kB	17.75 kB
lodash.pick	4.4.0	16.33 kB	16.33 kB
node-abort-controller	3.0.1	14.33 kB	14.33 kB
crypto-randomuuid	1.0.0	11.18 kB	11.18 kB
diagnostics_channel	1.1.0	7.07 kB	7.07 kB
path-to-regexp	0.1.7	6.78 kB	6.78 kB
koalas	1.0.2	6.47 kB	6.47 kB
methods	1.1.2	5.29 kB	5.29 kB
module-details-from-path	1.0.3	4.47 kB	4.47 kB

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[codecov]

Codecov Report

Merging #2967 (df7dd8a) into master (cfaadf2) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2967      +/-   ##
==========================================
- Coverage   87.64%   87.63%   -0.01%     
==========================================
  Files         329      329              
  Lines       11747    11747              
  Branches       33       33              
==========================================
- Hits        10296    10295       -1     
- Misses       1451     1452       +1     

see 1 file with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[pr-commenter]

Benchmarks

Comparing candidate commit df7dd8a in PR branch juan-fernandez/only-run-branches-check-in-master with baseline commit cfaadf2 in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 672 metrics, 36 unstable metrics.