chore(deps): bump coopnorge/engineering-docker-images/e0/techdocs from de1835c to 972f2c3 in /devtools (#222)

Bumps coopnorge/engineering-docker-images/e0/techdocs from `de1835c` to
`972f2c3`.


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devtools/Dockerfile

@@ -1 +1 @@
-FROM ghcr.io/coopnorge/engineering-docker-images/e0/techdocs:latest@sha256:de1835c9eff3f15939d72c090c786d0db0d7735f018d05980007ecca6717e664 AS techdocs
+FROM ghcr.io/coopnorge/engineering-docker-images/e0/techdocs:latest@sha256:972f2c3e4cfa6297929f55ce30442478bf157fc92e7587da62151f278a52f811 AS techdocs