User experience: Give a better error message when API key is missing

[vkumbha]

Is your feature request related to a problem? Please describe.
Give a proper error message, when the API key is missing

CLI Version: Flowpipe v0.1.0

$ flowpipe pipeline run uptimerobot.pipeline.list_monitors
[flowpipe] Execution ID: exec_clujp7nljat7rfenbjv0
[list_monitors] Starting pipeline
[list_monitors.list_monitors] Starting http: POST https://api.uptimerobot.com/v2/getMonitors
[list_monitors.list_monitors] Complete: 200 667ms
[list_monitors] Internal Error: Error calculating output 'monitors': Internal Error: output: Unsupported attribute: This object does not have an attribute named "monitors".
(/Users/venu/turbie/turbot/flowpipe-mod-uptimerobot/pipelines/monitor/list_monitors.fp:30,56-65)
[list_monitors] Failed 678ms

Only after using a --verbose flag, we get to know

$ flowpipe pipeline run uptimerobot.pipeline.list_monitors --verbose
[flowpipe] Execution ID: exec_clujsrnljat7scnhik10
[list_monitors] Starting pipeline
[list_monitors.list_monitors] Starting http: POST https://api.uptimerobot.com/v2/getMonitors
[list_monitors.list_monitors] Arg method = POST
[list_monitors.list_monitors] Arg request_body = {"api_key":"","format":"json","logs":"1"}
[list_monitors.list_monitors] Arg request_headers = {
  "Cache-Control": "no-cache",
  "Content-Type": "application/json"
}
[list_monitors.list_monitors] Arg step_name = list_monitors
[list_monitors.list_monitors] Arg url = https://api.uptimerobot.com/v2/getMonitors
[list_monitors.list_monitors] Attr finished_at = 2023-12-16T06:06:38.617853Z
[list_monitors.list_monitors] Attr response_body = {
  "error": {
    "message": "api_key parameter is missing.",
    "parameter_name": "api_key",
    "type": "missing_parameter"
  },
  "stat": "fail"
}
[list_monitors.list_monitors] Attr response_headers = {
  "Alt-Svc": "h3=\":443\"; ma=86400",
  "Cf-Cache-Status": "DYNAMIC",
  "Cf-Ray": "8364bdd269ecf484-BOM",
  "Connection": "keep-alive",
  "Content-Security-Policy": "frame-ancestors 'self'",
  "Content-Type": "application/json; charset=utf-8",
  "Date": "Sat, 16 Dec 2023 06:06:38 GMT",
  "Etag": "W/\"79-ergfDZeyI1WuHJDomaLmz5TLbYo\"",
  "Nel": "{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}",
  "Permissions-Policy": "geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()",
  "Referrer-Policy": "strict-origin-when-cross-origin",
  "Report-To": "{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=VfJ8AhBN4%2F5ElW0T6SnaC%2F09%2F%2FlkL%2FKd8ODUUiFzw1iPMLN53r2j99rlTGvyh3NUDLpvfnVUoI1KccJix4iAwpPQ0N9MzhDaS35xjd5KjbPt28ynOZnSIJoEuuJp8993fETbq6FgfBw2Pk1MAXQH4jk%3D\"}],\"group\":\"cf-nel\",\"max_age\":604800}",
  "Server": "cloudflare",
  "Strict-Transport-Security": "max-age=31536000; preload",
  "Vary": "Accept-Encoding",
  "X-Content-Type-Options": "nosniff",
  "X-Frame-Options": "SAMEORIGIN",
  "X-Xss-Protection": "1; mode=block"
}
[list_monitors.list_monitors] Attr started_at = 2023-12-16T06:06:38.346992Z
[list_monitors.list_monitors] Attr status = 200 OK
[list_monitors.list_monitors] Attr status_code = 200
[list_monitors.list_monitors] Complete: 200 272ms
[list_monitors] Internal Error: Error calculating output 'monitors': Internal Error: output: Unsupported attribute: This object does not have an attribute named "monitors".
(/Users/venu/turbie/turbot/flowpipe-mod-uptimerobot/pipelines/monitor/list_monitors.fp:30,56-65)
[list_monitors] Failed 280ms

The status code is 200 even for a failed request. Similar to slack api.
Perhaps include this message in the pipeline error instead of Error calculating output 'monitors'

[github-actions]

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