relax elasticsearch version restriction

[Wing924]

it don't work on centos 8 due to dnf_package bug

package 'elasticsearch' do
  version '7.8.1-1'
end

while it works:

package 'elasticsearch' do
  package_name 'elasticsearch-7.8.1'
end

[cla-checker-service[bot]]

❌ Author of the following commits did not sign a Contributor Agreement: c67de8026bf4e32fffc68c0a3594cbd49950bd7c, 64196fe998c3b5a775722a5462ea749875dd67d1, a249a02fccb19c881fec387b9dafe3332d48ad13

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[damacus]

Resolving via #767