Merge pull request #57 from NeuromatchAcademy/robots.txt-update #246

Job	Run time
build (production)	3m 55s
build (test)	3m 45s
test (3.1)	6m 4s
Libvips tests (3.1)	1m 21s
Elastic Search integration testing (3.1, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	2m 24s
test (3.2)	5m 24s
End to End testing (3.1)	2m 26s
Libvips tests (3.2)	1m 25s
Elastic Search integration testing (3.2, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	2m 22s
test (.ruby-version)	6m 29s
End to End testing (3.2)	2m 29s
Libvips tests (.ruby-version)	1m 56s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	3m 11s
End to End testing (.ruby-version)	2m 43s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	3m 6s
Elastic Search integration testing (.ruby-version, opensearchproject/opensearch:2)	2m 56s
	51m 56s

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