[Bug]: Internal pictrs request tries to connect via external proxy

[rayes0]

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Summary

9184800 avoids proxying pictrs requests, useful when running in docker (see #3489). However, some pictrs requests are still attempted through the proxy from here:

lemmy/crates/api_common/src/request.rs

Lines 376 to 391 in d346890

	let fetch_url = format!(
	"{}image/download?url={}&resize={}",
	pictrs_config.url,
	encode(image_url.as_str()),
	context.settings().pictrs_config()?.max_thumbnail_size
	);
	let res = context
	.client()
	.get(&fetch_url)
	.timeout(REQWEST_TIMEOUT)
	.send()
	.await?
	.error_for_status()?
	.json::<PictrsResponse>()
	.await?;

Currently, the requests fail when running in docker and using the system proxy. It should be set to not use the proxy like the other pictrs requests.

Steps to Reproduce

1. Run lemmy in docker with proxy environment variables set
2. Observe attempts like the following being passed to the proxy: TCP_MISS/502 4070 GET http://pictrs:8080/image/download?

Technical Details

n/a

Version

BE: 0.19.7

Lemmy Instance URL

No response