RHAIENG-2846: Add prefetch input data for hermetic codeserver build

Add all prefetch manifests and repo configs needed by cachi2/Konflux
to prefetch dependencies before the hermetic Docker build:

- prefetch-input/repos/: RPM repo configs (UBI, CentOS Stream, EPEL, RHSM-Pulp)
- prefetch-input/rpms.in.yaml: RPM package manifest (135 packages)
- prefetch-input/rpms.lock.yaml: resolved RPM lockfile (machine-generated)
- prefetch-input/artifacts.in.yaml: generic artifacts (GPG keys, nfpm,
  Electron/Node headers, oc client, ripgrep, VSCode extensions)
- prefetch-input/artifacts.lock.yaml: artifact checksums (machine-generated)
- prefetch-input/code-server: git submodule pinned at v4.106.3
- .gitmodules: register code-server submodule
- .gitignore: anchor /build/, /lib/, /bin/ to repo root for submodule;
  add cachi2/ to ignore list

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: ysok

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "codeserver/ubi9-python-3.12/prefetch-input/code-server"]
 	path = codeserver/ubi9-python-3.12/prefetch-input/code-server
 	url = https://github.com/coder/code-server.git
-	shallow = true
+	shallow = true

codeserver/ubi9-python-3.12/prefetch-input/artifacts.in.yaml

@@ -75,4 +75,4 @@ input:
     - url: https://github.com/microsoft/vscode-js-debug/releases/download/v1.105.0/ms-vscode.js-debug.1.105.0.vsix
       filename: ms-vscode.js-debug.1.105.0.vsix
     - url: https://github.com/microsoft/vscode-js-profile-visualizer/releases/download/v1.0.10/ms-vscode.vscode-js-profile-table.1.0.10.vsix
-      filename: ms-vscode.vscode-js-profile-table.1.0.10.vsix
+      filename: ms-vscode.vscode-js-profile-table.1.0.10.vsix

codeserver/ubi9-python-3.12/prefetch-input/artifacts.lock.yaml

@@ -91,4 +91,4 @@ artifacts:
     filename: ms-vscode.js-debug.1.105.0.vsix
   - download_url: https://github.com/microsoft/vscode-js-profile-visualizer/releases/download/v1.0.10/ms-vscode.vscode-js-profile-table.1.0.10.vsix
     checksum: sha256:7361748ddf9fd09d8a2ed1f2a2d7376a2cf9aae708692820b799708385c38e08
-    filename: ms-vscode.vscode-js-profile-table.1.0.10.vsix
+    filename: ms-vscode.vscode-js-profile-table.1.0.10.vsix

codeserver/ubi9-python-3.12/prefetch-input/repos/centos.repo

@@ -101,4 +101,4 @@ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
 gpgcheck=1
 repo_gpgcheck=0
 metadata_expire=-1
-enabled=0
+enabled=0

codeserver/ubi9-python-3.12/prefetch-input/rpms.in.yaml

@@ -152,4 +152,4 @@ packages:
   - patchelf
   - libimagequant-devel
   - libraqm-devel
-  - zeromq-devel
+  - zeromq-devel

codeserver/ubi9-python-3.12/prefetch-input/rpms.lock.yaml

@@ -14844,4 +14844,4 @@ arches:
   - url: https://composes.stream.centos.org/production/CentOS-Stream-9-20260217.0/compose/AppStream/x86_64/os/repodata/677a49b2e0726fb3afee7a5c18a14c3eba91f922041a49e99b9120009925553d-modules.yaml.gz
     repoid: appstream
     size: 10530
-    checksum: sha256:677a49b2e0726fb3afee7a5c18a14c3eba91f922041a49e99b9120009925553d
+    checksum: sha256:677a49b2e0726fb3afee7a5c18a14c3eba91f922041a49e99b9120009925553d