chore(deps): update gitea/gitea docker tag to v1.21.7 (#136)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Dockerfile

@@ -13,7 +13,7 @@ ARG WAIT_FOR_VERSION
 ARG CONTAINER_LIBRARY_VERSION
 
 # renovate: datasource=docker depName=gitea/gitea
-ENV GITEA_VERSION="${BUILD_VERSION:-1.21.5}"
+ENV GITEA_VERSION="${BUILD_VERSION:-1.21.7}"
 # renovate: datasource=github-releases depName=hairyhenderson/gomplate
 ENV GOMPLATE_VERSION="${GOMPLATE_VERSION:-v3.11.7}"
 # renovate: datasource=github-releases depName=thegeeklab/wait-for