[SPIKE] {API: CircleCI} further optimization of API CircleCI config.yml

[exalate-issue-sync]

• analyze the API’s .circleci/config/yml for further optimizations following https://fecgov.atlassian.net/browse/FECFILE-2939
• compare against CIrcleCI docs to substantiate evidence of potential optimization
• doc containing findings & feasible goals
• draft/refine the complementary implementation ticket

QA Notes

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DEV Notes

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Design

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See full ticket and images here: FECFILE-2979