Container building changes (#3958)

* WIP: Container building changes

* Small updates

- Updated to rust 1.73.0
- Updated crates
- Updated documentation
- Added a bake.sh script to make baking easier

* Update GitHub Actions Workflow

- Updated workflow to use qemu and buildx bake

In the future i would like to extract the alpine based binaries and add
them as artifacts to the release.

* Address review remarks and small updates

- Addressed review remarks
- Added `podman-bake.sh` script to build Vaultwarden with podman
- Updated README
- Updated crates
- Added `VW_VERSION` support
- Added annotations
- Updated web-vault to v2023.9.1

docker/bake_env.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+# If SOURCE_COMMIT is provided via env skip this
+if [ -z "${SOURCE_COMMIT+x}" ]; then
+    SOURCE_COMMIT="$(git rev-parse HEAD)"
+fi
+
+# If VW_VERSION is provided via env use it as SOURCE_VERSION
+# Else define it using git
+if [[ -n "${VW_VERSION}" ]]; then
+    SOURCE_VERSION="${VW_VERSION}"
+else
+    GIT_EXACT_TAG="$(git describe --tags --abbrev=0 --exact-match 2>/dev/null)"
+    if [[ -n "${GIT_EXACT_TAG}" ]]; then
+        SOURCE_VERSION="${GIT_EXACT_TAG}"
+    else
+        GIT_LAST_TAG="$(git describe --tags --abbrev=0)"
+        SOURCE_VERSION="${GIT_LAST_TAG}-${SOURCE_COMMIT:0:8}"
+        GIT_BRANCH="$(git rev-parse --abbrev-ref HEAD)"
+        case "${GIT_BRANCH}" in
+            main|master|HEAD)
+                # Do not add the branch name for these branches
+                ;;
+            *)
+                SOURCE_VERSION="${SOURCE_VERSION} (${GIT_BRANCH})"
+                ;;
+        esac
+    fi
+fi
+
+# Export the rendered variables above so bake will use them
+export SOURCE_COMMIT
+export SOURCE_VERSION