Provider scenario tests (#3688)

Co-authored-by: Douwe Osinga <douwe@squareup.com>

crates/goose-cli/Cargo.toml

@@ -25,6 +25,7 @@ rmcp = { workspace = true }
 clap = { version = "4.4", features = ["derive"] }
 cliclack = "0.3.5"
 console = "0.15.8"
+dotenvy = "0.15.7"
 bat = "0.24.0"
 anyhow = "1.0"
 serde_json = "1.0"
@@ -36,17 +37,17 @@ serde_yaml = "0.9"
 tempfile = "3"
 etcetera = "0.8.0"
 reqwest = { version = "0.12.9", features = [
-        "rustls-tls-native-roots",
-        "json",
-        "cookies",
-        "gzip",
-        "brotli",
-        "deflate",
-        "zstd",
-        "charset",
-        "http2",
-        "stream"
-    ], default-features = false }
+    "rustls-tls-native-roots",
+    "json",
+    "cookies",
+    "gzip",
+    "brotli",
+    "deflate",
+    "zstd",
+    "charset",
+    "http2",
+    "stream"
+], default-features = false }
 rand = "0.8.5"
 rustyline = "15.0.0"
 tracing = "0.1"