Update nginx Docker tag to v1.29.7

Author: renovate[bot]

frontend/deployment/Dockerfile

@@ -18,7 +18,7 @@ RUN elm make src/Main.elm --optimize --output=./dist/main.js
 RUN uglifyjs ./dist/main.js --compress "pure_funcs=[F2,F3,F4,F5,F6,F7,F8,F9,A2,A3,A4,A5,A6,A7,A8,A9],pure_getters,keep_fargs=false,unsafe_comps,unsafe" | uglifyjs --mangle --output=./dist/main.js
 
 ###############################################################
-FROM nginx:1.26.0-alpine@sha256:ef587d1eb99e991291c582bfb74f27db27f7ca2c095d4ba06cc3f7c910a0c7b3
+FROM nginx:1.29.7-alpine@sha256:e3f5ac6fb2b0ab577300bad4a9df7d4d0632c4baaa7416ac84e56184cfde9f82
 
 COPY deployment/envsubst-index.sh /docker-entrypoint.d/15-envsubst-index.sh