chore(deps): update quay.io/rhdh/plugin-catalog-index docker tag to v2

[renovate]

This PR contains the following updates:

Package	Update	Change
quay.io/rhdh/plugin-catalog-index	major	1.10 → 2.1

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[rm3l]

/bump backstage major

[sonarqubecloud]

Quality Gate passed

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0.0% Coverage on New Code
0.0% Duplication on New Code

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