docs: fix ranthebuilder link in Update we_made_this.md (#8084)

* dcos: fix ranthebuilder link in Update we_made_this.md

Signed-off-by: Ran Isenberg <60175085+ran-isenberg@users.noreply.github.com>

* replace /post with /blog

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Signed-off-by: Ran Isenberg <60175085+ran-isenberg@users.noreply.github.com>
Co-authored-by: Leandro Damascena <lcdama@amazon.pt>