Update metadata to use localhost for silent package manager (#12693)

- Changed hostname from example.com to 127.0.0.1 in metadata_finder.rb to ensure no network requests are made, maintaining the "silent" nature of the package manager.
- Updated various test data files to replace example.com with 127.0.0.1 for consistency and to avoid external network calls during tests.

Author: kbukum1

silent/lib/dependabot/silent/metadata_finder.rb

@@ -18,6 +18,8 @@ def homepage_url
 
       sig { override.returns(Dependabot::Source) }
       def look_up_source
+        # Use 127.0.0.1 as a non-routable hostname to avoid network requests
+        # This ensures the silent package manager remains truly "silent"
         Dependabot::Source.new(
           provider: "example",
           hostname: "127.0.0.1",

silent/tests/testdata/err-fetching.txt

@@ -9,6 +9,6 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests

silent/tests/testdata/err-glob-not-found.txt

@@ -10,6 +10,6 @@ job:
     directories:
       - "**/*"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests

silent/tests/testdata/err-parsing.txt

@@ -20,6 +20,6 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests

silent/tests/testdata/su-basic.txt

@@ -47,8 +47,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a
@@ -72,8 +72,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a
@@ -101,8 +101,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a

silent/tests/testdata/su-err-all-versions-ignored-rebase.txt

@@ -26,8 +26,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a

silent/tests/testdata/su-err-all-versions-ignored.txt

@@ -31,8 +31,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a
@@ -52,8 +52,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a

silent/tests/testdata/su-err-dependency-not-found.txt

@@ -25,8 +25,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: not-found

silent/tests/testdata/su-err-not-found.txt

@@ -35,8 +35,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a

silent/tests/testdata/su-err-not-needed.txt

@@ -25,8 +25,8 @@ job:
   source:
     directory: "/"
     provider: example
-    hostname: example.com
-    api-endpoint: https://example.com/api/v3
+    hostname: 127.0.0.1
+    api-endpoint: http://127.0.0.1/api/v3
     repo: dependabot/smoke-tests
   security-advisories:
     - dependency-name: dependency-a