tadpole/test-vm: Update WHIB service

- Update `WHIB` input
- Update secrets to reflect changes in input

secrets/tadpole/whib-postgres-backup-env-vars.age

@@ -0,0 +1,8 @@
+age-encryption.org/v1
+-> ssh-ed25519 5R7G9A 1fOxRiFn+GPoFpSPhFAg2nmZpxFmM1BZcIMWQ3jy8Wg
+udiZYe2hTJCpuo7ZVNekU1vgJShLQJV89nYAA+TbyqQ
+-> ssh-ed25519 +oNaHQ dIP4ZIk2qWb64WXo69EF8KMFNzy0yy2tcO4BPfJD32Q
+T0tvWp0P/8wbfMAjm5jdfTfibnO8gAB08qRHxacaEIo
+--- 2yCl/WI2F8pCjIKNhljhDW5v7B+SBdxjp4htPW+GPXU
+_<EFBFBD><EFBFBD><EFBFBD>A<EFBFBD>N<EFBFBD><EFBFBD>-<2D><><EFBFBD><EFBFBD>W<EFBFBD><57><EFBFBD><EFBFBD>r8<>+<2B><>g<EFBFBD><67><EFBFBD>_殢vC<76>0 <20>)<29>%<25><><EFBFBD>8<>~<7E><>7<11>Q"<22>S\AB<41><1C>XQ<58><51>zPN<50><4E><EFBFBD>efQ
+<EFBFBD> <20><>*<2A>^c<>j
q<>̫<EFBFBD><CCAB>0<15><><EFBFBD><EFBFBD>{c<>9<EFBFBD><39>͖<EFBFBD>]4Px<50>pQ[<5B><><EFBFBD>.C<05>i<EFBFBD><69>X<EFBFBD><58>/=T<><54>I<><49><EFBFBD><04><><EFBFBD><7F>%<25><18><0B>W<EFBFBD>O<EFBFBD><4F>5<><35><EFBFBD><EFBFBD>-n2<6E><32>4"l<><6C> <20><12><>y+<2B>=<3D>u_݉IO<49>'V<>	<09>9Vf<56>6J<36><4A>%<25><>.<2E><><EFBFBD><EFBFBD><EFBFBD>RL<15>Ɉ<EFBFBD><C988><EFBFBD>