docs: replace deprecated singingKeyProviders in favor of signingKeyProviders (#7048)

Author: noghartt

packages/web/docs/src/content/gateway/authorization-authentication.mdx

@@ -54,7 +54,7 @@ export const gatewayConfig = defineConfig({
     // Look and extract for the token in the 'authorization' header, with the 'Bearer' prefix.
     tokenLookupLocations: [extractFromHeader({ name: 'authorization', prefix: 'Bearer' })],
     // Decode and validate the token using the provided signing key.
-    singingKeyProviders: [createInlineSigningKeyProvider(signingKey)],
+    signingKeyProviders: [createInlineSigningKeyProvider(signingKey)],
     // Forward the verified token payload to the upstream GraphQL subgraphs.
     forward: {
       payload: true
@@ -78,7 +78,7 @@ export const gatewayConfig = defineConfig({
         extensionsFieldName: "jwt", // optional, default is "jwt"
       },
       // Configure your signing providers: either a local signing-key or a remote JWKS are supported.
-      singingKeyProviders: [
+      signingKeyProviders: [
         createInlineSigningKeyProvider(signingKey),
         createRemoteJwksSigningKeyProvider({ jwksUri: 'https://example.com/.well-known/jwks.json' })
       ]
@@ -526,7 +526,7 @@ export const gatewayConfig = defineConfig({
   // ...
   jwt: {
     // ...
-    singingKeyProviders: [createInlineSigningKeyProvider(process.env.MY_JWT_SECRET)]
+    signingKeyProviders: [createInlineSigningKeyProvider(process.env.MY_JWT_SECRET)]
   }
 })
 ```
@@ -552,7 +552,7 @@ export const gatewayConfig = defineConfig({
   // ...
   jwt: {
     // ...
-    singingKeyProviders: [
+    signingKeyProviders: [
       createRemoteJwksSigningKeyProvider({
         jwksUri: 'https://example.com/.well-known/jwks.json'
       })
@@ -580,7 +580,7 @@ export const gatewayConfig = defineConfig({
   // ...
   jwt: {
     // ...
-    singingKeyProviders: [
+    signingKeyProviders: [
       // In case your remote provider is not available, the plugin will try use the inline provider.
       createRemoteJwksSigningKeyProvider({
         jwksUri: 'https://example.com/.well-known/jwks.json'