* Add -insecureSkipVerify flag and config option for filer.sync HTTPS connections
When using filer.sync between clusters with different CAs (e.g., separate
OpenShift clusters), TLS certificate verification fails with "x509:
certificate signed by unknown authority". This adds two ways to skip TLS
certificate verification:
1. CLI flag: `weed filer.sync -insecureSkipVerify ...`
2. Config option: `insecure_skip_verify = true` under [https.client] in
security.toml
Closes#8778
* Add insecure_skip_verify option for HTTPS client in security.toml
When using filer.sync between clusters with different CAs (e.g., separate
OpenShift clusters), TLS certificate verification fails. Adding
insecure_skip_verify = true under [https.client] in security.toml allows
skipping TLS certificate verification.
The option is read during global HTTP client initialization so it applies
to all HTTPS connections including filer.sync proxy reads and writes.
Closes#8778
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Co-authored-by: Copilot <copilot@github.com>