feat: each provider can have its own timeout

providers.azure.timeout, providers.databricks.timeout and
providers.repos.timeout override providers.timeout for that provider's
requests; --timeout still sets them all. lazysecrets share, which reads
a key and repo files, waits the longest of them.

internal/config/config_test.go

@@ -29,6 +29,7 @@ storage:
 providers:
   timeout: 1m
   azure:
+    timeout: 2m
     hideSubscriptions: [platform-mgmt]
     vaults:
       - https://kv-foo.vault.azure.net/
@@ -40,7 +41,7 @@ providers:
 		t.Fatal(err)
 	}
 	if c.UI.Icons == nil || *c.UI.Icons || c.Values.ClipboardClear == nil || *c.Values.ClipboardClear != 45*time.Second ||
-		c.Providers.Timeout != time.Minute || len(c.Providers.Azure.Vaults) != 1 || c.Providers.Databricks.HideProfiles[0] != "test" {
+		c.Providers.Timeout != time.Minute || c.Providers.Azure.Timeout != 2*time.Minute || len(c.Providers.Azure.Vaults) != 1 || c.Providers.Databricks.HideProfiles[0] != "test" {
 		t.Errorf("config = %+v", c)
 	}
 	if c.UI.SourcesView != "flat" || On(c.Storage.History) || !On(c.Storage.Cache) {