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.go

@@ -123,7 +123,8 @@ type KeyRules struct {
 }
 
 type Providers struct {
-	// Timeout bounds each backend request; defaults to 30s.
+	// Timeout bounds each backend request; defaults to 30s. Each
+	// provider's own timeout overrides it for that provider.
 	Timeout    time.Duration `yaml:"timeout"`
 	Azure      Azure         `yaml:"azure"`
 	Databricks Databricks    `yaml:"databricks"`
@@ -134,6 +135,8 @@ type Providers struct {
 // that repo is the only one shown; elsewhere, the ones in Paths and under
 // Roots.
 type Repos struct {
+	// Timeout overrides providers.timeout for these requests.
+	Timeout time.Duration `yaml:"timeout"`
 	// Enabled defaults to true.
 	Enabled *bool    `yaml:"enabled"`
 	Paths   []string `yaml:"paths"`
@@ -148,6 +151,8 @@ type Repos struct {
 }
 
 type Azure struct {
+	// Timeout overrides providers.timeout for these requests.
+	Timeout time.Duration `yaml:"timeout"`
 	// Enabled defaults to true.
 	Enabled *bool `yaml:"enabled"`
 	// HideSubscriptions lists subscriptions to leave out, by name or ID.
@@ -158,6 +163,8 @@ type Azure struct {
 }
 
 type Databricks struct {
+	// Timeout overrides providers.timeout for these requests.
+	Timeout time.Duration `yaml:"timeout"`
 	// Enabled defaults to true.
 	Enabled      *bool    `yaml:"enabled"`
 	HideProfiles []string `yaml:"hideProfiles"`