Overwriting IPFS_HTTPS_GATEWAY leaks IPFS_HTTPS_GATEWAY_KEY to cloudflare-eth.com

[TimDaub]

• See line: https://github.com/neume-network/strategies/blob/a1368498e16d2f790d11e4d33ba875b060b99d7b/package.json#L60
• I have IPFS_HTTPS_GATEWAY_KEY and IPFS_HTTPS_GATEWAY defined in a local .env file
• But for some tests we're relying on cloudfront-eth.com being defined as the output of the test
• so we decided to hardcode it in package.json
• but if I now e.g. have my .env file, IPFS_HTTPS_GATEWAY_KEY will still be used in the HTTP headers and so e.g. my Infura credentials get leaked to cloudflare.
• I also ended up getting failing tests because if this cloudflare probably got confused about the random authorization header